Swamp Name Generator

Atmospheric names for swamps, bogs, marshes, and bayous

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Generate swamp, bog, marsh, fen, and bayou names that range from realistic Southern wetlands like Black Cypress Bayou to fantasy hazards like the Sunken Fen of Ghouls. Built for fantasy maps, D&D campaigns, horror settings, and Southern Gothic fiction.

About swamp names

Swamp names carry more menace than almost any other kind of place name, and the vocabulary is richer than most people realize. English alone gives you swamp, marsh, bog, fen, mire, morass, slough, moss, moor, carr, and bottoms, each with its own meaning: a bog is acidic peatland fed by rain, a fen is fed by groundwater, a marsh is dominated by grasses and reeds, and a swamp is a wetland with trees. Louisiana adds bayou, and Australia adds billabong.

Real swamp names tend to be blunt and descriptive. American wetlands are full of Black Cypress Bayou, Hell Hole Swamp, Gator Hole, and Devil's Elbow Swamp, named by people who had to slog through them. British and Irish bogs lean on old dialect: Chat Moss, Lindow Moss, Sedgemoor, Bog of Allen. Fantasy swamps borrow the same instincts but push harder on dread, which is where Dead Marshes, Bog of Eternal Stench, and the Sunken Fen come from. The most effective fantasy names hint at a story, like Drowned Man's Marsh or Marsh of the Drowned King.

This list mixes real wetlands from around the world with Cajun bayous, English fens, northern muskeg, salt marsh coasts, drowned ruins, wetland folklore, local nicknames, and original fantasy locations, for a Southern Gothic novel, a D&D hex map, or a horror game level.

How to choose swamp names

  • Choose the wetland word deliberately: bog for cold, peaty, northern settings; bayou for the American South; fen or moss for anything British-flavored; slough for the frontier West.
  • Name the swamp after what lives or died there (Gator Hole, Hangman's Slough, Bonemire) rather than stacking mood adjectives like Dark Gloomy Marsh.
  • For maps, pair a formal name with a local nickname: cartographers write Barataria Marsh, the fishermen call it the Sink.
  • Real French-Louisiana names use Bayou plus a noun (Bayou Teche, Bayou Noir); copy that structure with your own word for instant Cajun flavor.
  • Keep fantasy swamp names short enough to say in play; The Sunken Fen works at the table, The Ancient Sunken Fen of the Drowned Elder Kings does not.

Frequently asked questions

What is the difference between a swamp, a marsh, a bog, and a fen?

A swamp is a forested wetland, a marsh is dominated by grasses and reeds, a bog is acidic peatland fed mostly by rainfall, and a fen is peatland fed by mineral-rich groundwater. Fantasy writers can ignore the science, but using the right term adds realism for free.

Where do bayou names come from?

Bayou comes from the Choctaw word bayuk (small stream) via Louisiana French. Real bayou names are usually Bayou followed by a French or Native American descriptor, such as Bayou Teche, Bayou Cocodrie (crocodile), or Bayou Perdu (lost).

Are the real swamp names in this list free to use in my story?

Real place names like Okefenokee or the Great Dismal Swamp are geographic facts and are not owned by anyone, so you can reference them freely. Names from franchises, like Dagobah or the Dead Marshes, are included for inspiration only and should not be used commercially.

How do I name a swamp for a D&D campaign?

Start with the threat that lives there and work backwards: a hag gives you Crone Marsh or Hag's Hollow, a black dragon gives you Blackdragon Bog or Dragon's Wallow. Then add a folk name the locals use, which is often more evocative than the official one.

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All 1,000 swamp names

This is the complete list the generator above draws its random batches from, sorted A to Z and grouped by first letter.

Plain text, one name per line.

A: 21 names

  • Abbeyleix Bog
  • Adderbank Morass
  • Adventurers' Fen
  • Ague Flats
  • Agusan Marsh
  • Alcovy Swamp
  • Alder Carr
  • Alligator Alley Slough
  • Alligator River Swamp
  • Amber Bog
  • Amberley Wild Brooks
  • Arafura Swamp
  • Armand Bayou
  • Ashwater Fen
  • Askham Bog
  • Asphodel Mire
  • Atchafalaya Basin
  • Aune Head Mires
  • Avalon Marshes
  • Awarua Bog
  • Azraq Wetland

B: 169 names

  • Bagno Biale
  • Bald Cypress Swamp
  • Ballycroy Bog
  • Ballynahone Bog
  • Bangweulu Swamp
  • Barataria Marsh
  • Barge Graveyard
  • Bargeman's Sorrow
  • Bargerveen
  • Barnacle Root Mangrove
  • Barotse Floodplain
  • Basilisk Bog
  • Bayou Anacoco
  • Bayou Barataria
  • Bayou Bartholomew
  • Bayou Bienvenue
  • Bayou Black
  • Bayou Blue
  • Bayou Bodcau
  • Bayou Boeuf
  • Bayou Bonfouca
  • Bayou Bourbeux
  • Bayou Carencro
  • Bayou Casotte
  • Bayou Castine
  • Bayou Chene
  • Bayou Chevreuil
  • Bayou Chico
  • Bayou Chicot
  • Bayou Chinchuba
  • Bayou Choctaw
  • Bayou Choupique
  • Bayou Cocodrie
  • Bayou Corne
  • Bayou Courtableau
  • Bayou Cypremort
  • Bayou D'Arbonne
  • Bayou d'Inde
  • Bayou des Allemands
  • Bayou des Cannes
  • Bayou des Glaises
  • Bayou des Ourses
  • Bayou DeSiard
  • Bayou DeView
  • Bayou Dorcheat
  • Bayou du Large
  • Bayou Dularge
  • Bayou Fordoche
  • Bayou Funny Louis
  • Bayou Fusilier
  • Bayou Gauche
  • Bayou Goula
  • Bayou Grand Caillou
  • Bayou Grosse Tete
  • Bayou La Batre
  • Bayou la Loutre

B, continued

  • Bayou LaBranche
  • Bayou Lacassine
  • Bayou Lacombe
  • Bayou Lafourche
  • Bayou Macon
  • Bayou Manchac
  • Bayou Maringouin
  • Bayou Meto
  • Bayou Nezpique
  • Bayou Noir
  • Bayou Penchant
  • Bayou Perdu
  • Bayou Petit Caillou
  • Bayou Petite Anse
  • Bayou Pierre
  • Bayou Pigeon
  • Bayou Plaquemine
  • Bayou Pointe au Chien
  • Bayou Portage
  • Bayou Queue de Tortue
  • Bayou Rapides
  • Bayou Rigolettes
  • Bayou Sale
  • Bayou Sara
  • Bayou Sauvage
  • Bayou Segnette
  • Bayou Serpent
  • Bayou Sorrel
  • Bayou St. John
  • Bayou Teche
  • Bayou Terre aux Boeufs
  • Bayou Terrebonne
  • Bayou Texar
  • Bayou Tigre
  • Bayou Tortue
  • Bayou Trepagnier
  • Bayou Vermilion
  • Bayou Yscloskey
  • Bear Island Marsh
  • Bear Swamp
  • Beaver Meadow Swamp
  • Bedford Level
  • Beggar's Bog
  • Bellacorick Bog
  • Bellringer's Fen
  • Belltower Pool
  • Bellwether Bog
  • Bhitarkanika Mangroves
  • Biebrza Marshes
  • Biesbosch
  • Big Cypress
  • Big Thicket
  • Biloxi Marsh
  • Bittermere
  • Bittern Marsh
  • Black Cypress Bayou

B, continued

  • Black River Morass
  • Black Shuck Marsh
  • Black Skimmer Shoals
  • Black Spruce Muskeg
  • Blackdragon Bog
  • Blackgum Swamp
  • Blackmoss Bog
  • Blackpeat Moss
  • Blackreed Bog
  • Blackwater Mire
  • Blawhorn Moss
  • Blightmarsh
  • Bloodmoss Bog
  • Bloody Bay Marsh
  • Blue Elbow Swamp
  • Boardwalk's End
  • Bog Laurel Kettle
  • Bog Myrtle Moss
  • Bog of Allen
  • Bog of Borrowed Time
  • Bog of Erris
  • Bog of Eternal Stench
  • Bogeyman Fen
  • Bogfire Bottoms
  • Boggart Hole
  • Boggy Gut
  • Bogwraith Sink
  • Bolotnik's Mire
  • Bond Swamp
  • Bonewater Slough
  • Boot-Thief
  • Bootleg Slough
  • Border Mires
  • Bottomless Bog
  • Bourtanger Moor
  • Bowness Moss
  • Brackenmire
  • Brackish Bend
  • Brackmoor
  • Brinemarsh
  • Broke Axle Bottoms
  • Broken Bridge Bog
  • Buffalo Bayou
  • Bull Gator Lagoon
  • Bullfrog Bottoms
  • Bullywug Bog
  • Bulrush Bottoms
  • Bunyip Billabong
  • Buried Moon Bog
  • Burns Bog
  • Burnt Stump Pocosin
  • Busanga Swamps
  • Bushwhack Bog
  • Butterburn Flow
  • Buttonbush Marsh
  • Buttonwood Key
  • Buzzard Roost Marsh

C: 76 names

  • Cache Bottoms
  • Cache River Bottoms
  • Caddo Lake Bayou
  • Cahaba Bottoms
  • Cairnfoot Mire
  • Camargue Marsh
  • Cameron Marsh
  • Can Gio Mangrove
  • Candaba Swamp
  • Candlewick Marsh
  • Cankerroot Mire
  • Caribou Moss Barrens
  • Caroni Swamp
  • Carr of the Hanged Crow
  • Carrion Crow Carr
  • Catbrier Tangle
  • Catcott Lows
  • Catfish Bayou
  • Catoblepas Wallow
  • Cattail Bottoms
  • Cedar Swale
  • Cedarburg Bog
  • Céide Fields Bog
  • Cepkeliai Marsh
  • Chandeleur Sound Marsh
  • Charcoal-Burner's Bog
  • Chat Moss
  • Cheniere Caminada
  • Cheraw Slough
  • Cheyenne Bottoms
  • Chickahominy Swamp
  • Chir Batti Flats
  • Chokeweed Bog
  • Cinderfen
  • Clara Bog
  • Cley Marshes
  • Cliffe Marshes
  • Cloudberry Mire

C, continued

  • Cold Candle Bottoms
  • Coldwater Bog
  • Congaree Bottoms
  • Contraband Bayou
  • Coon Hollow Swamp
  • Coongie Billabong
  • Cootwater Fen
  • Copper River Delta
  • Copperwater Slough
  • Cordgrass Sound
  • Corkscrew Swamp
  • Corlea Bog
  • Corpse Candle Bog
  • Cors Caron
  • Cors Fochno
  • Cors Goch
  • Cottongrass Flow
  • Cottonmouth Creek Swamp
  • Cottonwood Slough
  • Cowbit Wash
  • Cranberry Bog
  • Cranberry Glades
  • Crane Marsh
  • Cranesville Swamp
  • Cranmere Pool
  • Crawfish Bottoms
  • Cricket Frog Slough
  • Crocodile God's Pool
  • Crone Marsh
  • Crymlyn Bog
  • Curlew Flow
  • Cursed Marsh
  • Cutthroat Bayou
  • Cuvette Centrale
  • Cypress Creek Swamp
  • Cypress Dome
  • Cypress Knee Bayou
  • Cypress Strand

D: 36 names

  • Dagobah Swamp
  • Dampwood Brake
  • Danes Moss
  • Danube Delta Marsh
  • Darkwater Bottoms
  • Dead Horse Slough
  • Dead Marshes
  • Deadfall Brake
  • Deadman's Bayou
  • Deadwater Slough
  • Deeping Fen
  • Deeps of the Green Mother
  • Delacroix Marsh
  • Dengie Marsh
  • Deserter's Refuge
  • Devil's Elbow Swamp
  • Devil's Punchbowl Bog
  • Devil's Swamp
  • Dimlantern Reach
  • Dirgemoor
  • Doñana Marsh
  • Dragon's Wallow
  • Dragonfly Fen
  • Drearholt
  • Dregwallow
  • Drelmoor Wash
  • Driftwood Estuary
  • Drizzlemoor
  • Drowned Chapel Fen
  • Drowned Knight's Rest
  • Drowned Lantern Quay
  • Drowned Man's Marsh
  • Drowned Steeple Marsh
  • Drunkard's Slough
  • Duckweed Slough
  • Duskmere

E: 14 names

  • East Dismal Swamp
  • Ebenezer Swamp
  • Ebrith Shallows
  • Eel-Catcher's Reach
  • Eelmire
  • Egret Marsh
  • Elephant Marsh
  • Elkhorn Slough
  • Ellenton Bottoms
  • Elmley Marshes
  • Elthenreach
  • Emberreed Marsh
  • Ewiges Meer Bog
  • Executioner's Fen

F: 31 names

  • Fakahatchee Strand
  • Fallowmere
  • Federsee Moor
  • Fen of a Thousand Eyes
  • Fen of the Forgotten
  • Fen of Whispering Skulls
  • Fenhallow
  • Fenland Reach
  • Fenn's Moss
  • Fenwick Bog
  • Ferrymen's Marsh
  • Feu Follet Marsh
  • Fever Ridge Bog
  • Fiddler Crab Flats
  • Fifolet Slough
  • Flanders Moss
  • Flatboat Graveyard
  • Flow Country
  • Fog Bottom
  • Forgotten Weir
  • Forsinard Flows
  • Foulness Marsh
  • Foulshaw Moss
  • Foulwater Slough
  • Four Holes Swamp
  • Fowler's Wash
  • Fox Tor Mires
  • Foxfire Slough
  • Frog Parliament
  • Frogmarsh
  • Frost Heave Fen

G: 45 names

  • Gallberry Pocosin
  • Gallows Bayou
  • Gallowsmere
  • Gallweed Morass
  • Gar Hole
  • Garry Bog
  • Gator Hole
  • Gatorback Slough
  • Ghost River
  • Ghostlight Fen
  • Ghostreed Fen
  • Ghoul Fen
  • Girley Bog
  • Glasson Moss
  • Glasswort Flats
  • Glenamoy Bog
  • Gloamquag
  • Gloomshade Bog
  • Gnatcloud Morass
  • Goblin Wallow
  • Golden Plover Moss
  • Grand Chenier
  • Grand Kankakee Marsh
  • Granny's Kettle
  • Grauballe Bog
  • Gravedigger's Marsh
  • Gravestone Shallows
  • Great Black Swamp
  • Great Cedar Swamp
  • Great Dismal Swamp
  • Great Manistique Swamp
  • Grebe Fen
  • Green Swamp
  • Greenwater Slough
  • Grendel's Mere
  • Greymire
  • Grimebottom
  • Grimreed Fen
  • Grimwater Slough
  • Grindylow Mere
  • Gris-Gris Slough
  • Groote Peel
  • Gulf Hammock
  • Gum Swamp
  • Gwent Levels

H: 42 names

  • Hackberry Bottoms
  • Hackensack Meadowlands
  • Hackney Marshes
  • Hag Queen's Cauldron
  • Hag's Hollow
  • Hagfen
  • Halfsunk Keep
  • Halvaine Reedsea
  • Halvergate Marshes
  • Hammar Marshes
  • Hangman's Slough
  • Hardscrabble Marsh
  • Hatchie Bottoms
  • Hatfield Moors
  • Hautes Fagnes
  • Hawizeh Marsh
  • Hell Hole Swamp
  • Hermit's Slough
  • Heron Fen
  • Hickling Marsh
  • Highwayman's Bog
  • Hinkypunk Mire
  • Hobby Lantern Fen
  • Hockomock Swamp
  • Hog Wallow Branch
  • Holcroft Moss
  • Hollowmere
  • Holly Shelter Swamp
  • Holme Fen
  • Honey Island Swamp
  • Horicon Marsh
  • Hornetnest Brake
  • Hornwort Fen
  • Horseshoe Crab Shallows
  • Hortobágy Marsh
  • Hudson Bay Lowlands
  • Hula Marsh
  • Humberhead Peatlands
  • Hunte Moss
  • Hurricane Bottoms
  • Hushreed Mere
  • Hydra Marsh

I: 6 names

  • Iberá Marsh
  • Ibis Bottoms
  • Ironbog
  • Irrlicht Moor
  • Isle de Jean Charles Marsh
  • Isle of Athelney

J: 2 names

  • Jack-o'-Lantern Bog
  • Jenny Greenteeth's Pool

K: 25 names

  • Kafue Flats
  • Kakadu Billabong
  • Kaw Swamp
  • Kaziranga Marsh
  • Kelpie's Wallow
  • Kemeri Bog
  • Keoladeo Marsh
  • Kerang Marsh
  • Kettle Hole Bog
  • Kettlemoss Fen
  • Kikimora Bog
  • Kingfisher Slough
  • Kirkby Moss
  • Kirkconnell Flow
  • Kis-Balaton
  • Kisatchie Bayou
  • Kissimmee Marsh
  • Klamath Marsh
  • Knellmere
  • Kobold Sump
  • Koo-Wee-Rup Swamp
  • Kopuatai Bog
  • Kuresoo Bog
  • Kushiro Marsh
  • Kutai Peat Swamp

L: 48 names

  • Labrador Tea Bog
  • LaBranche Wetlands
  • Lake Maurepas Marsh
  • Lake Salvador Marsh
  • Lakenheath Fen
  • Lamplighter's Folly
  • Lantern Man's Fen
  • Lantern Marsh
  • Lanternfly Fen
  • Last Chance Landing
  • Last Dry Step
  • Leatherleaf Fen
  • Leech King's Court
  • Leech-Gatherer's Moss
  • Leechwater
  • Leighton Moss
  • Leper's Fen
  • Letiche Bayou
  • Lichenmoor
  • Likouala Swamps
  • Lille Vildmose
  • Lilypad Marsh
  • Limberlost Swamp
  • Lindow Moss
  • Lindworm Mire
  • Linyanti Swamp
  • Lizard's Tail Slough
  • Lizardfolk Marsh
  • Llanos de Moxos
  • Loblolly Slough
  • Loggy Bayou
  • Logjam Oxbow
  • Lonely Fen
  • Lonesome Oxbow
  • Loon Call Bog
  • Lornmere
  • Lost Causeway
  • Lost Child Marsh
  • Lost Cow Slough
  • Lost Ferry Reach
  • Lostfoot Fen
  • Loup-Garou Bayou
  • Low Tide Labyrinth
  • Lowlands of Irrowen
  • Loxahatchee Slough
  • Lukanga Swamp
  • Lullymore Bog
  • Lurkmire

M: 75 names

  • Macquarie Marshes
  • Madman's Mire
  • Mai Po Marshes
  • Malham Tarn Moss
  • Malltraeth Marsh
  • Manatee Hole
  • Manchac Swamp
  • Mangrove Bight
  • Mapmaker's Blot
  • Marais Audomarois
  • Marais Breton
  • Marais de Brière
  • Marais Poitevin
  • Marais Vernier
  • Marrowmere
  • Marsh of Lost Souls
  • Marsh of the Drowned King
  • Marshes of Lerna
  • Marshes of Oum
  • Marshgate
  • Marshlight Hollow
  • Martin Mere
  • Maurepas Swamp
  • Mer Bleue Bog
  • Mere of the Sleeping Serpent
  • Mermentau Marsh
  • Mesopotamian Marshes
  • Miasma Marsh
  • Midgehaze Quag
  • Midgewater Marshes
  • Milkweed Bottoms
  • Miller's Regret
  • Min Min Billabong
  • Mingo Swamp
  • Minsmere Levels
  • Minto Flats
  • Mire Drake Den

M, continued

  • Mire of Broken Oaths
  • Mire of Quellith
  • Mire of Sighs
  • Mire of the Nine Lanterns
  • Mireholt
  • Mirelands of Uskar
  • Mirkstead
  • Mistmarsh
  • Mkuze Swamps
  • Mobile-Tensaw Delta
  • Moine Mhor
  • Moldering Deeps
  • Mongan Bog
  • Montezuma Marsh
  • Moonshine Bayou
  • Moonwater Marsh
  • Moorwater Fen
  • Moose Wallow Muskeg
  • Morass of Gorrund
  • Morass of Wasted Years
  • Mosquito Hollow
  • Moss of Achnacree
  • Moss of Kilcreggan
  • Mosswight Barrow
  • Mothwing Mere
  • Mournfen
  • Muck Hollow
  • Mud Sink Marsh
  • Mudflat Hollow
  • Mudman Flats
  • Mudpuppy Marsh
  • Mudskipper Flats
  • Mullet Run Slough
  • Murder Creek Swamp
  • Murkwater Fen
  • Murnauer Moos
  • Muscadine Thicket
  • Muskrat Marsh

N: 14 names

  • Naga Pools
  • Narew Marshes
  • Nariva Swamp
  • Needlerush Sound
  • Nene Washes
  • Nettlemire
  • Newtwater Bog
  • Nightshade Fen
  • Nisqually Delta
  • No Man's Marsh
  • Nobody's Acre
  • Nøkken Tarn
  • Nutria Flats
  • Nyssmere

O: 26 names

  • Oak Hammock Marsh
  • Oathbreaker's Quag
  • Ochre Sink
  • Ocklawaha Swamp
  • Ogeechee Bottoms
  • Ogre Slough
  • Okaloacoochee Slough
  • Okavango Marsh
  • Okefenokee
  • Old Cypress Swamp
  • Old Mill Sump
  • Old Quag
  • Old Widow Cypress Swamp
  • Oldwater Bog
  • Olmany Mires
  • Orphan's Bog
  • Osier Holt
  • Osprey Marsh
  • Ossenquag
  • Otmoor
  • Otter Slough
  • Ouse Washes
  • Overcup Oak Bottoms
  • Owlhoot Slough
  • Oyster Shell Bight
  • Oze Marsh

P: 46 names

  • Palewater Fen
  • Palmetto Slough
  • Pantanal Wetlands
  • Pantanos de Centla
  • Panther Slough
  • Pascagoula Bottoms
  • Pass a Loutre
  • Pauper's Fen
  • Paynes Prairie
  • Pearl River Swamp
  • Peatcutter's Rest
  • Peatgrave Bog
  • Peatlands of Ael
  • Peatsmoke Barrens
  • Pelican Roost Mangrove
  • Permafrost Sink
  • Pestilence Fen
  • Pett Level
  • Pevensey Levels
  • Picayune Strand
  • Pichavaram Mangrove
  • Pickerelweed Slough
  • Pickleweed Slough
  • Pilgrim's Mistake
  • Pinhook Swamp
  • Pirogue Cut
  • Pitcher Plant Bog
  • Pitchpool Quag
  • Plague Mire
  • Plain of Reeds
  • Poacher's Sink
  • Pocosin Marsh
  • Pointe-aux-Chenes Marsh
  • Polecat Pocosin
  • Polesia Fen
  • Pollardstown Fen
  • Pond Cypress Marsh
  • Pond Pine Savanna
  • Pontine Marshes
  • Pools of the Pale Lady
  • Pools of Yth
  • Possum Trot Slough
  • Powder Keg Bayou
  • Preacher's Slough
  • Pripyat Marshes
  • Pwca's Bog

Q: 4 names

  • Quag of Nharl
  • Quag of the Crooked Tree
  • Quagmarrow
  • Quicksand Flats

R: 34 names

  • Rainham Marshes
  • Rankmoss Quagmire
  • Rann of Kutch
  • Rannoch Moor Bog
  • Rattlesnake Bottoms
  • Ravenreed Fen
  • Raybarrow Pool
  • Razorback Canebrake
  • Red Lake Peatland
  • Red Mangrove Maze
  • Red Maple Swamp
  • Redgrave Fen
  • Reed-Cutter's Carr
  • Reedbed Marsh
  • Reedmarrow Fen
  • Reelfoot Marsh
  • Resurrection Fern Hammock
  • Revenant Reach
  • Risley Moss
  • Rockefeller Marsh
  • Romney Marsh
  • Rooksbane Mire
  • Rospuda Marsh
  • Ross Barnett Swamp
  • Rotten Pier Flats
  • Rotwood Marsh
  • Rougarou Marsh
  • Roundstone Bog
  • Ruewort Mire
  • Rung Sat Swamp
  • Rusalka Reeds
  • Rushmere
  • Rusted Anchor Slough
  • Rustwater Marsh

S: 99 names

  • Sabine Bottoms
  • Sabine Marsh
  • Salamander Slough
  • Saline Bayou
  • Sallow Sink Marsh
  • Saltgrass Pans
  • Saltmire
  • Samphire Saltings
  • Sandhill Crane Fen
  • Santee Swamp
  • Sarobetsu Mire
  • Sarrow Deeps
  • Savannah River Swamp
  • Sawgrass Slough
  • Sawmill Backwater
  • Sax-Zim Bog
  • Scape Ore Swamp
  • Scarborough Marsh
  • Schwarzes Moor
  • Scragh Bog
  • Screaming Fen
  • Sea Lavender Saltings
  • Sedgeholm
  • Sedgemoor
  • Sedgewater
  • Sepik Marsh
  • Serpent's Mire
  • Seven Sunk Bells
  • Shadowfen
  • Shambling Mound Mire
  • Shannon Callows
  • Shapwick Heath
  • Shark River Slough
  • Shroudmist Deeps
  • Silver Bluff Slough
  • Silver Flowe
  • Silvermist Fen
  • Sinkhole Slough
  • Sinner's Marsh
  • Sinnersrest Fen
  • Sipsey Swamp
  • Sjaunja Mire
  • Skeeter Hollow
  • Skjern Fen
  • Skull Bayou
  • Skunk Ape Slough
  • Slitherdeep
  • Slough of Despond
  • Sloughton Marsh

S, continued

  • Sludgemoor
  • Smokereed Flats
  • Smuggler's Cut
  • Snagwood Slough
  • Snail Kite Marsh
  • Snakebird Slough
  • Snapping Turtle Bayou
  • Solway Moss
  • Somerset Levels
  • Soomaa Bog
  • Sootwater Slough
  • Sorrowmere
  • Spanish Moss Slough
  • Sphagnum Hollow
  • Spider Lily Backwater
  • Spidersilk Quag
  • Spoonbill Bottoms
  • Sporefall Quagmire
  • Spunkie Moss
  • Stagnant Bog
  • Standing Stones Mire
  • Starvation Fen
  • Stillhouse Slough
  • Stilt Root Thicket
  • Stilt Town Backwater
  • Stiltmoor
  • Stodmarsh
  • Store Mosse
  • Storm Surge Flats
  • Strangleroot Marsh
  • Strumpshaw Fen
  • Stygian Marsh
  • Stymphalian Marshes
  • Sudd Marsh
  • Suisun Marsh
  • Sumpgate
  • Sundarbans Mangrove
  • Sundew Bog
  • Sunk Barrow Fen
  • Sunken Fen of Ghouls
  • Sunken Road
  • Surveyor's Despair
  • Swallowed Abbey
  • Swamp of Sadness
  • Swamp of the Last Lantern
  • Swamp Rose Hammock
  • Swampwitch Bog
  • Sweet Gale Fen
  • Sweetgum Bottoms
  • Switchcane Brake

T: 117 names

  • Tablas de Daimiel
  • Tadham Moor
  • Tailypo Hollow
  • Tamarack Muskeg
  • Tanglewater Bog
  • Tarblack Sink
  • Tarpit Bottoms
  • Tasek Bera
  • Tate's Hell Swamp
  • Taylor Slough
  • Teici Bog
  • Ten Thousand Islands
  • Tensas Swamp
  • Terrapin Tidelands
  • Terrebonne Marsh
  • Teufelsmoor
  • The Back of Beyond
  • The Bad Mile
  • The Beckoning Lights
  • The Birdless Fen
  • The Blackened Fen
  • The Bleak Morass
  • The Bonemire
  • The Breathing Mire
  • The Brooding Carr
  • The Buried Wharf
  • The Choking Marsh
  • The Creeping Bog
  • The Deep Soft
  • The Devil's Larder
  • The Dismal Bottoms
  • The Dreaming Peat
  • The Drink
  • The Drowned Fields
  • The Drowned Wood
  • The Drowning Fen
  • The Endless Mire
  • The Everglades
  • The Festering Marsh
  • The Fever Fens
  • The Forsaken Fen
  • The Gloaming Bog
  • The Green Hell
  • The Grey Morass
  • The Gurgling Deep
  • The Hollow Marsh
  • The Humming Marsh
  • The Hungry Bog
  • The Leaden Reach
  • The Lightless Fen
  • The Listening Reeds
  • The Long Wet
  • The Low Country
  • The Moaning Marsh
  • The Muttering Pools
  • The Never-Dry
  • The Pathless Mire
  • The Patient Quag

T, continued

  • The Quaking Moss
  • The Restless Bog
  • The Rotting Fen
  • The Rotting Reach
  • The Seeping Lowlands
  • The Shivering Moss
  • The Silent Slough
  • The Sink
  • The Sinking Lands
  • The Skeeter Kingdom
  • The Sleeping Bog
  • The Smothering Green
  • The Soak
  • The Squelch
  • The Starless Mere
  • The Stinking Fen
  • The Suck
  • The Sucking Mire
  • The Sullen Deeps
  • The Sunk Village
  • The Sunken Fen
  • The Sunless Marsh
  • The Swallowing Morass
  • The Tilted Cross
  • The Trembling Earth
  • The Unmapped Quarter
  • The Unquiet Shallows
  • The Wailing Mire
  • The Waking Bog
  • The Wandering Fen
  • The Weeping Marsh
  • The Windless Flats
  • The Witherfen
  • Thistlemere
  • Thorne Moors
  • Thornreed Fen
  • Thousand Stilts
  • Thrassil Fen
  • Thunderfrog Wallow
  • Tiddy Mun's Carr
  • Tidewrack Saltings
  • Tin Cup Bog
  • Tinker's Wallow
  • Titchwell Marsh
  • Titi Thicket
  • Toad Prophet's Seat
  • Toadstool Ring Carr
  • Toadwallow
  • Tollkeeper's Mire
  • Tollund Fen
  • Tonle Sap Marsh
  • Toppled Shrine Mire
  • Torronsuo Mire
  • Traitor's Fen
  • Trapper's Slough
  • Troll Fens
  • Trotline Bend
  • Tumbled Wall Carr
  • Tupelo Bottoms

U: 3 names

  • Umberdeep
  • Umbrel Carr
  • Upo Wetland

V: 15 names

  • Valli di Comacchio
  • Vasyugan Mire
  • Verdant Mire
  • Verdigris Pools
  • Vermilion Marsh
  • Vharn's Wallow
  • Vilewater Fen
  • Viper's Braid
  • Viru Bog
  • Virvatuli Mire
  • Vodyanoy Marsh
  • Volo Bog
  • Voodoo Bayou
  • Vulture's Wash
  • Vwaza Marsh

W: 43 names

  • Walberswick Marshes
  • Wallasea Marsh
  • Wallow of the Old Gods
  • Wambaw Swamp
  • Wanlight Morass
  • Water Moccasin Bayou
  • Water Oak Slough
  • Waterlily Fen
  • Wax Lake Delta
  • Wedholme Flow
  • Weirwater Marsh
  • Wentloog Level
  • Westhay Moor
  • Whangamarino Wetland
  • Whelk Shell Hammock
  • Whippoorwill Brake
  • Whiskey Jug Slough
  • Whispering Reeds
  • White Oak Bayou
  • White River Bottoms
  • Whittlesey Mere
  • Whixall Moss
  • Wicken Fen
  • Widow's Bog
  • Widowmaker Bog
  • Wild Rice Marsh
  • Wildcat Brake
  • Willo'-the-Wisp Marsh
  • Willow Slough
  • Wisp Hollow
  • Wisplight Fen
  • Witches' Fen
  • Witchlight Carr
  • Witherbough Carr
  • Withybed Carr
  • Woebegone Wash
  • Wolf River Bottoms
  • Woodstork Marsh
  • Woodwalton Fen
  • Wraithmire
  • Wurzacher Ried
  • Wybunbury Moss
  • Wyvern Roost Fen

Y: 6 names

  • Yala Swamp
  • Yellow Fever Swamp
  • Yellow Water Billabong
  • Yelnya Bog
  • Ygremoor
  • Yukon Flats

Z: 3 names

  • Zapata Swamp
  • Zekiah Swamp
  • Zoige Marsh