Warhammer Planet Name Generator

Planet names in Warhammer 40,000 mostly come from the Imperium's cartographers, who catalog a million worlds in a language that sounds like corrupted Latin. The most common structure is a proper name plus an ordinal suffix indicating the planet's position in its system: Voss Prime, Vraks Prime, Ryza Secundus, Ophelia VII, Gryphonne IV, Stygies VIII. Prime (or Primus), Secundus, Tertius, Quintus, Majoris, Minoris, and Ultima all appear in canon, and Roman numerals are just as common. Single-word names drawn from Earth mythology and history are also everywhere: Cadia, Armageddon, Krieg, Baal, Fenris, Medusa, Nocturne, Tallarn, Valhalla, Catachan.

Every Imperial world also has a classification, and fans often refer to planets by it: Hive World Necromunda, Forge World Mars, Death World Catachan, Shrine World Ophelia VII, Fortress World Cadia. Hive worlds tend toward industrial names, forge worlds toward metallic or Mechanicus-flavored names (Metalica, Graia, Agripinaa), shrine worlds toward saintly Latin (Sancta, Beatus, Lux Aeterna), and death worlds toward names that promise misery (Vermilius, Ashcaldera). Chaos-held daemon worlds twist the pattern into something wrong (Sicarus, Medrengard, Ghalmek), while xenos worlds follow their own tongues: Aeldari craftworlds (Ulthwé, Biel-Tan), T'au sept worlds (Vior'la, Sa'cea), Necron tomb worlds (Solemnace, Mandragora).

The list below mixes canon planets from every faction with original names built on the same rules, so you can drop them into a Crusade campaign, Kill Team narrative, Rogue Trader session, or Black Library-style story without breaking the setting.