Planet Name Generator 40K

Planet names in Warhammer 40,000 do a lot of storytelling in a single word. The Imperium of Man speaks High Gothic, a pseudo-Latin, so its worlds carry names like Macragge, Prospero, Sepheris Secundus and Gryphonne IV: classical roots, ordinal suffixes (Prime, Secundus, Tertius, Ultima) and Roman numerals that mark a planet's position in its system. Layered over that are names taken from Earth's history and myth (Armageddon, Valhalla, Krieg, Tallarn) and possessives that remember a founder or saint (Rynn's World, Perdition's Rock).

Other factions follow their own logic. T'au sept worlds use apostrophes and short syllables – Vior'la, Sa'cea, Bork'an – while Necron tomb worlds and Chaos-held planets tend toward harsher, older sounds like Mandragora or Sicarus. A world's classification also shapes how it is named: forge worlds often sound industrial and metallic (Metalica, Ryza, Stygies VIII), hive worlds carry names weighted with population and decay, and death worlds are frequently named for the thing that kills you.

The list above blends canonical planets from the lore with new names built on the same rules, so you can drop a fresh hive world into a Crusade campaign next to Cadia and Necromunda without it feeling out of place. Add a classification (Agri-World, Shrine World, Feral World) or a subsector and you have an instant gazetteer entry.