Planet Name Generator | Discover Names for New Worlds & Star Systems

Planet Name Generator

Staring into the void of a blank star map? Let's give those new worlds a name worthy of the cosmos.

Let's face it, as a writer, game master, or world-builder, there's a unique kind of terror that comes from a blank page. But nothing is more vast and empty than a blank star map. You have your story, your aliens, your cool starships... but what do you call the planets they visit? "Planet X" just doesn't have that ring of adventure, does it? A planet's name needs to spark the imagination. It should hint at its environment, its history, or the mysteries it holds.

I created this Planet Name Generator because I'm a huge sci-fi fan and I know that struggle all too well. I wanted a tool that went beyond just mashing random sci-fi syllables together. This generator is built to create names that feel real and evocative. It combines classic astronomical naming conventions with creative, fantastical elements to give you a list of worlds that feel like they're just waiting to be charted. Let's fill that star map with adventure.

🔭 Generate Your Planet Name

Ready to chart the unknown? Click the button below to generate 8 unique names for planets, moons, and star systems. Save your favorites and start building your galaxy!

What Makes a Great Planet Name?

A good sci-fi planet name feels authentic. It sounds like it could plausibly exist on a futuristic star chart, yet it's cool and memorable enough to stick in the reader's or player's mind. The best names often follow a few unwritten rules borrowed from real-life astronomy and classic science fiction, giving them a sense of grounded reality, even if they're entirely fictional.

The Scientific Designation

Many sci-fi worlds, especially in more grounded or "hard" sci-fi, use a system similar to real astronomy. A name is often a combination of a star's name followed by a number or letter indicating the planet's position in the system. For example, "Kepler-186f" is a real exoplanet. This style gives a sense of realism and scale to your universe.

  • **Example:** Kepler-186f (Real)
  • **Our Generator's Approach:** The tool creates names like "Cygnus X-1," "Veridia Prime," or "Helios IV" to mimic this official, exploratory feel. It suggests a universe that is being systematically cataloged.

The Mythological or Thematic Name

Once a planet is colonized or becomes significant, it often earns a "proper" name. Humanity has a long tradition of naming celestial bodies after gods, goddesses, and figures from mythology (Mars, Jupiter, Venus). Sci-fi extends this to fictional gods, historical figures, or concepts. A name like "Prometheus" or "Pandora" instantly gives a planet a specific thematic weight.

  • **Example:** The planet "Pandora" from *Avatar*.
  • **Our Generator's Approach:** The generator constructs names from syllables that sound ancient and powerful, like "Xylos," "Aethel," or "Kryll," creating a sense of history and lore.

Names for Terrestrial & Habitable Worlds

These are the Earth-like planets, the garden worlds, the new frontiers. Their names often reflect nature, hope, and the promise of a new home. They can sound welcoming, lush, or simply familiar.

Veridia PrimeThe "Verd-" root suggests greenness and life. This is a lush, vibrant world, the prime candidate for colonization.
AstraeaNamed after the Greek goddess of justice and innocence, this name suggests a utopian world, a fresh start for humanity.
New HopeA simple, direct name for a colony world. It's filled with the aspirations of its settlers who have left an old world behind.
Terra NovaLatin for "New Earth." It's a classic sci-fi name for the first habitable world humanity finds beyond its own.
Kepler's PromiseThis name suggests it was a long-sought-after planet, perhaps one that astronomers searched for over centuries.
SanctuaryA name for a hidden, peaceful world, a refuge from a galactic war or a dying star system.

Names for Gas Giants & Hostile Planets

Not every world is a paradise. Gas giants, volcanic planets, and frozen wastelands need names that convey their danger and extreme nature. These names are often harsh, powerful, and intimidating.

Hades VNaming a planet after the god of the underworld is a clear warning. This is a place of fire, brimstone, and death.
Cryo-7The "Cryo" prefix immediately signals extreme cold. This is a frozen iceball of a planet, hostile to all life.
JormungandrNamed after the world serpent from Norse mythology, this name is perfect for a colossal, stormy gas giant with swirling, snake-like cloud bands.
AcheronNamed after the "river of woe" in the Greek underworld, this name suggests a bleak, desolate, and sorrowful place.
Tartarus PrimeIn mythology, Tartarus is a deep abyss used as a dungeon of torment. A fitting name for a galactic prison planet.
RagnarokThe name for the end of the world in Norse mythology. This could be a volatile, unstable planet on the brink of self-destruction.

Names for Ancient & Alien Worlds

These names belong to worlds with non-human origins, or planets that hold the ruins of a long-dead precursor race. They should sound strange, mysterious, and deeply ancient.

XylosA name that feels distinctly alien, with a sharp 'X' and 'y' combination that doesn't feel human.
The Krell HomeworldNaming a planet after the extinct alien race that once lived there instantly creates a sense of history and mystery.
ZoranthThis name has a guttural, almost insectoid sound. It's perfect for the home of a non-humanoid alien species.
The First WorldA simple but incredibly powerful name for a planet that is rumored to be the birthplace of all life in the galaxy.
The Oracle at CygnusA name that suggests this location isn't just a planet, but a place of cosmic importance where one can find answers.
TerminusLatin for "end." A name for a planet at the absolute edge of the known galaxy, beyond which lies only the void.

💬 Transmissions from Fellow World-Builders

"I'm writing a hard sci-fi novel and this generator is phenomenal. The mix of scientific-sounding names and creative ones is perfect. The human writing style here is so much better and more engaging!"
- K. Jameson, Sci-Fi Author
"Used this for my Stars Without Number campaign to populate an entire sector of space. My players loved the names 'Cryo-7' and 'Veridia Prime.' The favorites list let me save my whole star map."
- 'StarMaster_Zane'
"This is just plain fun. I love the creativity. The names it generates are so evocative and really get the imagination going. A fantastic tool for any creative person."
- Sasha R.

❓ Frequently Asked Questions

How does the Planet Name Generator work?
It uses a large database of sci-fi syllables, real astronomical terms, and mythological names. The engine combines these elements using various naming conventions to generate a diverse list of authentic-sounding planet and star system names.
Can I find names for different types of planets?
Yes! The generator creates a wide variety of styles. This page also includes curated lists with dozens of examples specifically for habitable worlds, hostile gas giants, and ancient alien planets to help you find a name that fits your needs.
Are these names free to use for my book or game?
Absolutely. All names generated are 100% free for you to use in your stories, role-playing games, and any other commercial or non-commercial creative projects.
How do I save my favorite planet names?
Just click the heart icon (❤️) next to any name you like. It will be automatically added to "Your Star Chart" at the top of the page. This list is saved in your browser, so it will be there when you return.

🚀 Chart Your Course

Your universe is no longer empty. It is now dotted with worlds of fire and ice, gardens of alien life, and the silent tombs of forgotten races. A name gives a world its identity and its first spark of life. We hope this tool has helped you light up your corner of the galaxy.

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