Planet Name Generator
Create sci-fi planet and world names for space opera, hard sci-fi, and fantasy worldbuilding. Choose your planet type, setting, and naming style — no signup required.
Choose your planet type and setting, then hit Generate
Your planet names will appear here
Quick Tips
- Hard sci-fi: catalog designations (Kepler-186f)
- Space opera: mythological names (Arrakis, Solaris)
- Match sound to environment — dry for deserts, fluid for oceans
- Keep naming conventions consistent within a star system
- Alien names should feel phonetically foreign but pronounceable
Mythological Planet Names
Names drawn from mythology — familiar yet cosmic.
Hyperion
Thalassa
Elysium
Arcadia
Avalon
Olympus
Valhalla
Tartarus
Asgard
Nibiru
Pandora
Solaris
Scientific Designation Names
Catalog-style names in the tradition of real astronomical surveys.
Kepler-447b
TRAPPIST-186f
Gliese-729d
HD-234b
TOI-1061c
LHS-447b
Ross-234b
Wolf-186f
Proxima-729d
Tau-1061c
Alien Planet Names
Exotic, otherworldly names that feel like they belong to alien civilizations.
Zyrkath
Vexalune
Khaonis
Throvari
Xelthos
Nexium
Qaraxia
Draeth
Phoolia
Iskuris
Descriptive World Names
Evocative compound names that paint a picture of the planet.
Ashworld
Deepveil
Stormreach
Frosthaven
Emberfall
Voidgate
Duskdrift
Ironforge
Crystalpeak
Shadowshore
How to Name a Fictional Planet
A planet name should feel like a discovery rather than an invention — as if astronomers or explorers named it, not an author.
Match Name to Genre
Hard sci-fi uses catalog designations (Kepler-186f). Space opera uses mythological names (Arrakis, Caladan). Fantasy uses descriptive compounds (Ashworld, Frosthaven).
Consistent Systems
If one planet in your system has a mythological name, the rest should too. Mixing catalog numbers with fantasy names breaks immersion.
Sound = Environment
Desert planets get dry consonants and open vowels (Arrakis, Tatooine). Ocean worlds get fluid sounds (Thalassa, Kamino). The phonetics should preview the environment.
Cultural Naming
Different civilizations name planets differently. This is worldbuilding texture — a planet called HD-447b was found by scientists; one called Valhalla was named by settlers with a mission.
Explore Related Generators
Need more names? Try these companion generators.