Space Sector Name Generator

Sectors, reaches and expanses for galactic maps

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Name the regions of a galactic map: constellation sectors like Corvus Sector and Perseus Expanse, founder names like The Hadrian Reach, administrative labels like Third Coreward March and Subsector Kilo-Four, hazard zones like The Graveyard Narrows, and spacer nicknames like The Shallows. Built for space RPGs, 4X games and science fiction worldbuilding.

About space sector names

A sector name is a label on a map, so it has to tell the reader two things at a glance: roughly where the region lies and what kind of place it is. Science fiction borrows most of its region words from old terrestrial geography and seafaring. A march is a border territory, a reach is a long open stretch, an expanse is thinly settled, and shoals, narrows and straits warn a navigator that the going is hard. Pair one of those with a proper noun and you have a region: Corvus Sector, The Hadrian Reach, Breaker Shoals.

The list mixes ten approaches. Constellation and star names give a near-Earth, human-settled feel. Surnames suggest a region named for its first surveyor. Administrative labels such as Third Coreward March, Subsector Kilo-Four and Survey Zone Indigo read as the work of a bureaucracy, using the common science fiction directions coreward, rimward, spinward and trailing. Mythological names, invented alien-sounding names, trade regions and hazard zones fill out the frontier, and short spacer nicknames like The Shallows or Coldside are what locals actually say.

A few real structures are included for reference, among them the Orion Spur, where the Sun sits, the Perseus Arm, the Local Bubble and the Boötes Void.

How to choose space sector names

  • Decide the hierarchy first. A common scheme is quadrant, then sector, then subsector, then system, so keep the grand words (Expanse, Quadrant, Arm) for large areas and the tight ones (Narrows, Straits, Subsector) for small ones.
  • Let the name reveal who drew the map. An empire numbers its holdings (Charter Sector One, Treaty Sector Eleven), settlers name places for hopes and hardships (Far Hope Frontier, Hunger Gap), and haulers use nicknames (The Milk Run, Blockade Run).
  • Give neighboring regions a shared logic. Three sectors named for constellations beside one called Xibalba Rift tells players that something different happened there.
  • Use hazard words honestly. If you call a region Gravity Shoals or The Flare Fields, have a rule or an encounter ready that explains why ships avoid it.
  • In 4X games, where labels show in small type, short names such as Coldside, Vela Drift or Nightward stay readable on a crowded star map.

Frequently asked questions

What is a sector in science fiction?

A sector is a named volume of space used to divide a galactic map, usually containing many star systems. Settings differ on the exact size, and many stack the terms, with quadrants or regions above sectors and subsectors below. For your own map the only rule is consistency: pick a scale and stick to it.

What are some good space sector names?

Classic choices pair a constellation or star with a region word, such as Corvus Sector, Lyra Reach, Perseus Expanse or Antares Rift. For more character try The Hadrian Reach, The Lantern Deeps, Widow's Drift or The Graveyard Narrows. Administrative names like Sector Twelve-Rimward and Subsector Tau suit military and bureaucratic settings.

What do coreward, rimward, spinward and trailing mean?

They are direction words for a disk-shaped galaxy that many science fiction settings use in place of north and south. Coreward points toward the galactic center and rimward toward the outer edge, while spinward follows the direction of the galaxy's rotation and trailing runs against it. Names such as Third Coreward March and Outer Trailing Sector use them to place a region on the map.

Are any of these real places?

A small group are real structures that astronomers have named, including the Orion Spur, Perseus Arm, Sagittarius Arm, Local Bubble, Gould Belt, Boötes Void and Zone of Avoidance. Everything else is invented or combines a real constellation, star or mythological name with a fictional region word.

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All 500 space sector 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: 28 names

  • Aaru Expanse
  • Abernathy Sector
  • Achernar Sector
  • Acheron Gulf
  • Adeyemi Sector
  • Aldebaran Expanse
  • Aldune Sector
  • Alfheim Sector
  • Algol Deeps
  • Altair Marches
  • Amarune Veil
  • Amaterasu Cluster
  • Anansi Cluster
  • Anchorage Sector
  • Annwn Deeps
  • Anshar Rift
  • Antares Rift
  • Antlia Basin
  • Apus Fringe
  • Aquila Sector
  • Ara Subsector
  • Arcadia Sector
  • Archive Sector
  • Arcturus Reach
  • Ashfall Sector
  • Auriga Sector
  • Avalon Reach
  • Aztlan Marches

B: 13 names

  • Beacon Line Sector
  • Beaumont Frontier
  • Belisar Reach
  • Bellatrix Sector
  • Below-Plane Territories
  • Bifrost Corridor
  • Black Tide Expanse
  • Blockade Run
  • Blueshift Reach
  • Boötes Void
  • Breaker Shoals
  • Brisande Rim
  • Buffer Zone Halcyon

C: 36 names

  • Cael Dorath Sector
  • Caldessa Marches
  • Canopus Gulf
  • Capella Cluster
  • Capital Sector
  • Caravan Run
  • Carina Marches
  • Cassiopeia Reach
  • Castor-Pollux Corridor
  • Centaurus Marches
  • Central Molecular Zone
  • Cepheus Reach
  • Cerberus Narrows
  • Cetus Deeps
  • Charon Passage
  • Chart Sheet Forty
  • Charter Sector One
  • Charterhouse Sector
  • Charybdis Straits
  • Cinder Sector
  • Circinus Sector
  • Coalsack Reach
  • Cocytus Void
  • Coldside
  • Colonial Sector Eight
  • Columba Sector
  • Coreward Approaches
  • Coreward Quadrant
  • Corsair Gulf
  • Corvus Sector
  • Crossroads Sector
  • Crux Traverse
  • Customs Sector Two
  • Cygnus Corridor
  • Cygnus Rift
  • Cythra Basin

D: 18 names

  • Darkward
  • Dead Reckoning Expanse
  • Debris Coast
  • Deepfield
  • Delphinus Sound
  • Demir Rift
  • Desolation Quadrant
  • Deuterium Shoals
  • Diaspora Drift
  • Dilmun Sector
  • Dorado Expanse
  • Dorneth Rift
  • Draco Rift
  • Draveth Rift
  • Drydock Gulf
  • Duat Corridor
  • Dumont's Passage
  • Dusk Traverse

E: 9 names

  • Edge of Charts
  • Eluvane Sector
  • Elysian Sector
  • Ember Expanse
  • Eridanus Traverse
  • Eriksen Rim
  • Exclusion Zone Cassandra
  • Exile's Expanse
  • Eze Subsector

F: 16 names

  • Far Hope Frontier
  • Far Rimward Sector
  • Fenrah Drift
  • Finisterre Reach
  • First Rimward March
  • First Wave Territories
  • Fomalhaut Verge
  • Fonseca Verge
  • Forbidden Quadrant
  • Fornax Gulf
  • Fortune's Verge
  • Foundry Worlds Sector
  • Free Ports Expanse
  • Freehold Marches
  • Freighter's Passage
  • Frostline Sector

G: 9 names

  • Galactic Habitable Zone
  • Galloway Shoals
  • Gateway Quadrant
  • Ghost Ship Gulf
  • Ghostlight Sector
  • Gould Belt
  • Gravity Shoals
  • Grid Nine-Lima
  • Guild Sector Seven

H: 17 names

  • Haddad Corridor
  • Halfway Dark
  • Halloran's Gulf
  • Hangman's Drift
  • Harmony Cluster
  • Harvest Marches
  • Hermit's Periphery
  • Hesk Oraan Sector
  • Hesperides Drift
  • High Plane Sector
  • Hoang Traverse
  • Home Sector
  • Homestead Expanse
  • Horologium Span
  • Hunger Gap
  • Hydra Verge
  • Hyperborea Expanse

I: 7 names

  • Inner Shelf Sector
  • Inner Spinward Sector
  • Ion Storm Belt
  • Irkalla Void
  • Issolde Narrows
  • Iwasaki Subsector
  • Ixaar Sector

J: 4 names

  • Jablonski Corridor
  • Janus Traverse
  • Jarnesh Cluster
  • Jubilee Sector

K: 6 names

  • Kel Vantor Sector
  • Kessler Drift
  • Keth Aruna Sector
  • Kimathi Expanse
  • Korvane Reach
  • Kunlun Sector

L: 21 names

  • Lacerta Narrows
  • Laniakea
  • Last Chance Corridor
  • Lastlight Frontier
  • Lethe Expanse
  • Lindqvist Marches
  • Local Bubble
  • Local Group
  • Local Interstellar Cloud
  • Local Void
  • Lodestar Sector
  • Long Night Expanse
  • Longhaul Corridor
  • Lost Fleet Expanse
  • Lothis Verge
  • Lower Trailing Quadrant
  • Lumerre Passage
  • Lupus Frontier
  • Lynx Corridor
  • Lyonesse Shoals
  • Lyra Reach

M: 21 names

  • Mag Mell Sector
  • Magellanic Bridge
  • Magellanic Stream
  • Magnetar Wastes
  • Mandate Territories
  • Marlowe's Drift
  • Matsuda Drift
  • Mavrenn Corridor
  • Merchant's Traverse
  • Mercy Sector
  • Meru Cluster
  • Midplane Corridor
  • Mintaka Passage
  • Mira Drift
  • Mirrorfall Verge
  • Mohrai Frontier
  • Morrigan Rift
  • Musca Shoals
  • Muspel Verge
  • Mwangi Quadrant
  • Myrren Corridor

N: 13 names

  • Nadir Sector
  • Nakamura Cluster
  • Naxori Gulf
  • Near Coreward Sector
  • Nemesis Sector
  • Neth Surai Sector
  • Niflheim Deeps
  • Nightglass Drift
  • Nightward
  • No Man's Reach
  • Norma Arm
  • Norma Quadrant
  • Nullspace Verge

O: 19 names

  • O'Rourke's Folly
  • Oathbreaker Rift
  • Observatory Reach
  • Octans Periphery
  • Okafor Expanse
  • Old Colonies Sector
  • Ondreth Verge
  • Onwudiwe Cluster
  • Ophiuchus Rift
  • Orchard Worlds Reach
  • Orion Spur
  • Orlune Deeps
  • Oru Shan Sector
  • Ostrander Gulf
  • Outer Arm
  • Outer Core Marches
  • Outer Trailing Sector
  • Outlaw Territories
  • Oyelaran Sector

P: 20 names

  • Pashenne Gulf
  • Patrol Zone Echo
  • Pavo Cluster
  • Pegasus Expanse
  • Pell Ashtar Marches
  • Penglai Drift
  • Perdition Rift
  • Perseus Arm
  • Perseus Expanse
  • Petrova Sector
  • Phlegethon Rift
  • Pilgrim's Traverse
  • Polaris Quadrant
  • Procyon Subsector
  • Prospector's Belt
  • Protectorate Sector Six
  • Providence Expanse
  • Pryce's Wager
  • Pulsar Alley
  • Pyxis Sector

Q: 6 names

  • Qorrin Expanse
  • Quadrant Four
  • Quarantine Zone Nine
  • Queiroz Passage
  • Quetzalcoatl Arm
  • Quillon Sector

R: 14 names

  • Radcliffe Wave
  • Rashune Traverse
  • Rasmussen Drift
  • Redshift Marches
  • Refinery Row
  • Refuge Cluster
  • Regulus Quadrant
  • Relay Chain Corridor
  • Reticulum Sector
  • Rhovani Sector
  • Rigel Frontier
  • Rimward Quadrant
  • Rimward Territories
  • Ring Three Sector

S: 45 names

  • Sael Varuun Expanse
  • Sagitta Run
  • Sagittarius Arm
  • Saiph Traverse
  • Saltstar Shoals
  • Salvage Coast
  • Sanctuary Sector
  • Santangelo Sector
  • Scorpius-Centaurus Association
  • Scutum Marches
  • Scutum-Centaurus Arm
  • Scylla Narrows
  • Sector Aleph
  • Sector K-17
  • Sector Nine
  • Sector Omicron
  • Sector Prime
  • Sector Seven-Tango
  • Sector Theta-Four
  • Sector Twelve-Rimward
  • Sector Ultima
  • Sector Zero
  • Serpens Veil
  • Sextans Quadrant
  • Shambhala Reach
  • Shipbreaker Shoals
  • Sindriel Deeps
  • Singh-Moreau Frontier
  • Siren Straits
  • Sokolov Rift
  • Southern Halo Reach
  • Spica Sector
  • Spinward Approaches
  • Starfall Expanse
  • Starless Traverse
  • Starward
  • Stillwater Drift
  • Storm Lantern Sector
  • Stormwall Rift
  • Styx Corridor
  • Subsector Eleven
  • Subsector Kilo-Four
  • Subsector Tau
  • Survey Zone 12
  • Survey Zone Indigo

T: 140 names

  • Tal Imren Sector
  • Tanaka Corridor
  • Tartarus Rift
  • Telescopium Void
  • Tesh Kavar Sector
  • Tharsei Cluster
  • The Aldrich Expanse
  • The Amber Corridor
  • The Antipodes
  • The Archipelago
  • The Armistice Zone
  • The Armitage Sector
  • The Ashworth Marches
  • The Atoll
  • The Backwater
  • The Black Shoals
  • The Blind Reach
  • The Bonded Zone
  • The Bone Shoals
  • The Breadbasket Cluster
  • The Brink
  • The Broken Halo
  • The Burning Rim
  • The Ceded Sectors
  • The Churn
  • The Commons
  • The Copper Veil
  • The Crownless Sector
  • The Crush Deeps
  • The Dead Reaches
  • The Delacroix Veil
  • The Devil's Traverse
  • The Disputed Marches
  • The Doldrums
  • The Drop
  • The Drowned Stars
  • The Eddy
  • The Empty Quarter
  • The Far Periphery
  • The Far Shelf
  • The Ferreira Deeps
  • The Filament
  • The Flare Fields
  • The Founders' Sector
  • The Gilded Corridor
  • The Ginnungagap

T, continued

  • The Glass Verge
  • The Granary Reach
  • The Graveyard Narrows
  • The Great Rift
  • The Guerrero Span
  • The Hadrian Reach
  • The Hard Rad Marches
  • The Harrowed Reach
  • The Helium Banks
  • The Hinterstars
  • The Hollow
  • The Hollow Quadrant
  • The Howling Void
  • The Ibarra Run
  • The Interdicted Stars
  • The Interval
  • The Iron Marches
  • The Junction
  • The Kowalski Rift
  • The Lachance Gulf
  • The Lacuna
  • The Lantern Deeps
  • The Lawless Marches
  • The Lee
  • The Lighthouse Chain
  • The Long Crossing
  • The Maelstrom Verge
  • The Margin
  • The Meridian Quadrant
  • The Milk Run
  • The Neutral Traverse
  • The Northern Galactic Shelf
  • The Nova Scar
  • The Open Sky Territories
  • The Ore Belt
  • The Pale Marches
  • The Patient Dark
  • The Pemberton Tract
  • The Penitent Stars
  • The Penumbra
  • The Quarantine Stars
  • The Quiet Quadrant
  • The Ragged Fringe
  • The Reef
  • The Remnant Wastes
  • The Rust Belt
  • The Saffron Lanes

T, continued

  • The Scatter
  • The Scrapyard Belt
  • The Second Ring
  • The Selvage
  • The Shallows
  • The Shattered Verge
  • The Shear
  • The Shipyard Cluster
  • The Silence
  • The Silent Reach
  • The Silk Corridor
  • The Skein
  • The Sleeping Deeps
  • The Slow Light Marches
  • The Sorrows
  • The Spill
  • The Spokes
  • The Sunless Gulf
  • The Tangle
  • The Terraform Belt
  • The Thicket
  • The Thin Stars
  • The Thousand Suns Sector
  • The Threshold
  • The Umbra
  • The Unsurveyed Reach
  • The Vanishing Quadrant
  • The Verge
  • The Wake
  • The Weeping Veil
  • The Whitlock Narrows
  • The Wild Fringe
  • The Wreckers' Coast
  • Third Coreward March
  • Thorne's Reach
  • Three-Kiloparsec Arm
  • Thule Periphery
  • Tiamat Deeps
  • Tidal Narrows
  • Tir na Nog Reach
  • Tollgate Corridor
  • Tolliver's Reach
  • Trailing Territories
  • Tranquility Deeps
  • Treaty Sector Eleven
  • Tucana Rim
  • Tuvaq Frontier

U: 7 names

  • Ulmeri Drift
  • Ultima Verge
  • Umbriel Sector
  • Uncharted Quadrant
  • Unincorporated Territories
  • Upper Spinward Quadrant
  • Uth Marak Sector

V: 12 names

  • Van der Meer Shoals
  • Varga Deeps
  • Vashanti Cluster
  • Vasquez Sector
  • Vega Sector
  • Vela Drift
  • Velisande Expanse
  • Vigrid Marches
  • Virgo Supercluster
  • Volans Drift
  • Vorsk Expanse
  • Vulpecula Sector

W: 8 names

  • Wayfarer's Drift
  • Waystation Traverse
  • Wessel Tarn Sector
  • Whisper Rift
  • Widow's Drift
  • Windless Gulf
  • Windward Stars
  • Wyndrath Traverse

X: 2 names

  • Xanthe Moru Sector
  • Xibalba Rift

Y: 4 names

  • Yamamoto Verge
  • Yevanni Drift
  • Yggdrasil Span
  • Ys Marches

Z: 5 names

  • Zenith Sector
  • Zephra Quadrant
  • Zhaleth Marches
  • Zone of Avoidance
  • Zorya Sector