Planet Name Generator
Naming a planet is one of the most distinctive acts of world-building. A planet's name shapes how readers, players, and audiences perceive everything about it — its climate, its culture, its distance from home. This generator produces original planet names drawn from algorithmically assembled phoneme patterns designed to feel alien yet pronounceable, exotic yet memorable.
The generator works in several modes. Some names are assembled from onset consonants, vowel clusters, and ending fragments to produce naturalistic alien-sounding words. Others follow a harder science fiction convention, combining a pronounceable word component with an alphanumeric catalog code — the kind of designation you'd find on a star chart or in a fleet database. Both styles produce names ready to drop into any sci-fi setting without modification.
From epic space operas to intimate colony dramas, every fictional universe needs planets with names that feel both distinct and plausible. Whether you're writing a novel, running a tabletop campaign, designing a video game, or building a universe for any other creative purpose, this generator gives you an unlimited supply of world names to populate your cosmos.
The International Astronomical Union (IAU) governs official planet and moon naming. Solar system planets take names from Roman and Greek mythology — Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune. Moons often follow thematic naming conventions: Saturn's moons draw from Greco-Roman Titans and giants; Uranus's moons take names from Shakespeare and Alexander Pope. Exoplanets discovered by telescope surveys receive catalog designations like "Kepler-186f" or "HD 209458 b" — systematic codes rather than evocative names. The IAU's NameExoWorlds campaigns allow public submissions for culturally meaningful names for confirmed exoplanets, producing names like Dimidium, Spe, and Veritate.
The most memorable fictional planet names share a quality of productive strangeness — they feel foreign but not impossible to say. Arrakis from Frank Herbert's Dune has Arabic roots that hint at the planet's desert culture. Coruscant from Star Wars comes from a Latin root meaning "glittering". Gallifrey from Doctor Who has a Celtic resonance. Pandora from Avatar deliberately echoes Greek mythology to suggest beauty and danger. These names work because they're grounded in real linguistic patterns, stretched just far enough to feel alien. This generator uses the same principle — real phoneme patterns assembled in unfamiliar combinations.
Velorath
Pronounceability: A planet name must be speakable. Readers who stumble over a name every page lose immersion. The best alien names are phonetically smooth despite being unfamiliar.
Nothis X7R4
Catalog Style: Alphanumeric designations convey hard-SF realism — the sense that this world was discovered by scientists, logged in databases, and mapped by survey ships before anyone set foot on it.
Dralimia
Distinctive Sound: Good planet names don't sound like Earth places or existing planets. Unusual vowel clusters and consonant combinations signal that this world belongs to a different part of the galaxy.
Copy and paste the below code in your site and you will have a fully functional Planet Name Generator in an instant.