Sci-Fi Name Generator
Generate alien characters, planets, and spaceships for your next story or game.
Last updated: September 23, 2026
The phonetics behind an "alien-sounding" name
Alien character names here are assembled from three parts: an unusual consonant-heavy onset (like "Zr," "Kv," or "Vex"), a vowel sound, and a distinct ending (like "-eth" or "-oth"), occasionally split with an apostrophe partway through. That combination avoids the syllable patterns common in real human languages hard consonant clusters at the start of a word, unfamiliar vowel pairings which is what makes a name read as "alien" rather than like an ordinary human name with a letter changed. It's the same trick sci-fi and fantasy writers use by hand: lean on sounds and letter combinations that don't occur naturally in English.
Why planet and ship names follow different rules
Planet names use invented root words (like "Xandor" or "Thalassia") optionally paired with a designation suffix "Prime," "Minor," "-IV," "-9" mirroring the naming conventions used for real astronomical catalogs and classic space-opera worldbuilding, where a system's planets get numbered or ranked. Ship names follow military and exploration-vessel convention instead: a prefix like "ISV" or "USS" (echoing real naval and sci-fi ship-naming schemes) followed by an evocative adjective-noun pair like "Silent Horizon" or "Radiant Comet" the kind of name that sounds official on a viewscreen readout.
Where these names get used
Tabletop RPG campaigns and D&D-style space settings are the most common use, along with worldbuilding for a novel or short story, naming NPCs and factions in a video game, or filling in a Traveller or Starfinder character sheet. They also work well as filler for game jams and prototypes where you need dozens of placeholder names for star systems or ship classes without hand-crafting each one.
Getting more control over the result
This generator intentionally has no input fields every name is fully random within its category, which is faster than filling out a form but means you can't steer it toward a specific sound or theme. If you want a name built from a word or keyword you already have (a character's homeworld, a company name, a real word to riff on), the general name generator and business name generator let you supply your own starting word instead.
FAQ
Are these names copyright-free?
Yes every name is assembled fresh from syllable and word-fragment patterns at the moment you click generate, not pulled from an existing list, so you're free to use them in your own creative work without attribution.
Can I generate more than 5 at a time?
Each click gives you 5 fresh results, but there's no limit on how many times you can click just press "Generate 5 More" repeatedly to build a longer list.
Can I combine names from different tabs, like an alien captain of a specific ship?
Yes generate a character name on the "Alien Character" tab, then switch to "Spaceship" and generate again. Nothing carries over automatically between tabs, so just note down results as you go.
Do the names ever repeat?
It's possible but uncommon, since each category draws from a large pool of onsets, roots, and suffixes combined in different ways. If two results in the same batch look identical, generate again for a fresh set.
Can I get names for a specific alien species or culture theme?
Not with this tool all alien character names are drawn from the same general phonetic style rather than species-specific themes. For a themed name, try generating several and picking the ones that best fit the species or culture you have in mind.