Table of Contents

TLDR

If you want one name that reads as strong, easy to say, and not overplayed: Orion. If you want something quieter that almost nobody else in the daycare class will have: Alkaid, Elio, or Norma (yes, it works for a boy — more on that below). Skip Apollo and Atlas if you’re hoping for rare; both have climbed hard in U.S. naming data over the past five years and are now firmly mainstream.

Why space names are having a moment

Space-themed names aren’t a fringe pick anymore. Several have posted real jumps in U.S. Social Security Administration rankings over the past few years — Atlas and Apollo both moved into the top 200 boy names, and Sol has climbed hundreds of spots since 2019 as parents lean into short, single-syllable, meaning-rich options. Part of it is the run of space content in pop culture — Mars rover landings, private launches, the Dune and Star Wars franchises keeping mythology names visible. Part of it is simpler: astronomy gives you a name pool that’s ancient (most of these are 2,000+ years old), globally recognized, and doesn’t come pre-loaded with a decade of a single celebrity’s baggage.

A deep and expansive view of a starry night sky, capturing the beauty of the galaxy.

How we sorted these

Most lists mix boys and girls in one long scroll, which means you end up skimming past forty names that don’t apply to you. This one is boys-only, split into five categories — constellations, individual stars, planets and moons, sun/light names, and mythological sky gods — because those are genuinely different naming pools with different sounds and different levels of popularity. At the end, we’ve also flagged which of these are actually rare versus which just feel rare because they sound cosmic.

Constellation names

Constellations give you some of the most usable boy names in this whole list, mostly because a few of them (Orion, Leo, Perseus) have been standard names for centuries — they were people and heroes first, constellations second.

Orion is the hunter constellation, one of the few patterns visible from nearly every populated place on Earth thanks to its three-star belt. As a name it’s Greek, means roughly “rising” or “son of fire” depending on the myth version you follow, and it’s had a real run in the U.S. top 200 for the past several years — not rare, but not tired either.

Draco is the dragon that coils around the north celestial pole; Latin for “dragon,” and yes, most parents now know the Harry Potter association before the astronomy one. Worth knowing going in.

Perseus killed Medusa and rescued Andromeda, and his constellation sits next to hers in the sky — a nice detail if you’re pairing names with a sibling. Greek, means “destroyer.”

Cepheus was Andromeda’s father, an Ethiopian king in the myth, and his constellation forms a simple house-shaped outline near the pole star. Quiet, distinctive, easy nickname to “Ceph” or “Cep.”

Name Meaning Origin Vibe
Orion Rising / son of fire Greek Confident, classic
Leo Lion Latin Strong, common, zodiac crossover
Draco Dragon Latin/Greek Bold, Potter-adjacent
Perseus Destroyer Greek Heroic, underused
Hercules Glory of Hera Greek Big, mythic, a lot for a small kid
Cygnus Swan Greek Soft sound, unusual
Corvus Raven Latin Dark, sleek, rare
Lupus Wolf Latin Rugged, short
Auriga Charioteer Latin Distinctive, hard to shorten
Phoenix Fire bird Greek Popular, symbolic
Aquila Eagle Latin Strong consonants, rare
Indus The Indian (named for the river/people) Latin Very rare, geographic root
Norma Carpenter’s square Latin Unisex-read now, historically used for boys too
Crux Cross Latin Short, sharp, Southern Cross reference
Grus Crane (the bird) Latin Very rare, one syllable
Lynx Lynx Greek Modern-sounding, animal name crossover
Cepheus King (mythical) Greek Regal, quiet
Cassio From Cassiopeia’s root Greek Shakespeare crossover (Othello)
Serpens Serpent Latin Edgy, rarely used
Camelo Shortened from Camelopardalis (giraffe) Latin Playful, obscure
Boaz Adapted sound-alike for Boötes Hebrew/Greek Biblical root, easy to say
Delphinus Dolphin Latin Gentle, unusual
Hydrus Water snake Latin Sleek, rare
Volans Flying fish Latin Very rare, modern feel
Pavo Peacock Latin Short, striking

Star names

Star names for boys tend to sound sharper and more consonant-heavy than constellation names — a lot of them come through Arabic astronomy, which dominated star cataloging for centuries before European telescopes caught up.

Sirius, the brightest star in the night sky, sits in Canis Major and gets its name from the Greek for “scorching” — ancient Egyptians tracked its rising to predict the Nile flood. It’s had a boost from Harry Potter (Sirius Black), similar to Draco, so don’t expect total obscurity.

Altair is one of the closest bright stars to Earth at just 17 light-years, part of the Summer Triangle, and its name comes from the Arabic al-nasr al-ta’ir, “the flying eagle.”

Arcturus is the brightest star in the northern celestial hemisphere and one of the closest giant stars to our solar system; the name is Greek for “guardian of the bear,” a reference to its position trailing Ursa Major.

Alkaid marks the end of the Big Dipper’s handle and its name comes from Arabic for “the leader of the daughters,” part of a poetic older name for the whole Ursa Major grouping. Almost nobody uses this one — genuinely rare.

Name Meaning Origin Vibe
Sirius Scorching / glowing Greek Bright, Potter crossover
Rigel Foot (of Orion) Arabic Sharp, modern
Altair The flying eagle Arabic Strong, underused
Antares Rival of Mars Greek Bold, red-star meaning
Arcturus Guardian of the bear Greek Distinctive, protective meaning
Castor Beaver / one of the Gemini twins Greek Classic, wearable
Pollux The other Gemini twin Greek Pairs naturally with Castor
Deneb Tail (of the swan) Arabic Short, punchy
Regulus Little king Latin Regal, easy to say
Capella Little she-goat Latin Soft, more commonly used for girls
Procyon Before the dog (rises before Sirius) Greek Unusual, scholarly feel
Bellatrix Female warrior Latin Reads feminine — Potter association strong
Alnair The bright one Arabic Meaningful, rare
Merak The loin (of the bear) Arabic Short, sleek
Dubhe The bear Arabic Very rare, one syllable
Kochab Star Arabic Simple sound, obscure
Alkaid The leader Arabic Rare, meaningful
Mizar Girdle/waistband Arabic Unusual texture
Elnath The butting one (Taurus’ horn) Arabic Distinctive, rare
Hadar Ground/settlement Arabic Grounded feel, uncommon
Canopus Named for a mythical helmsman Greek Second-brightest star, nautical root
Achernar End of the river Arabic Poetic, rare

Planet and moon names

These skew toward mythology twice over — most planets and moons were named after Roman or Greek gods, so you’re getting the celestial reference and the myth reference in one word.

Atlas is the Titan condemned to hold up the sky, and also a small moon of Saturn — a name that’s climbed into the U.S. top 50 in the past decade, so treat it as popular, not a hidden gem anymore.

Titan, Saturn’s largest moon, is the only moon in the solar system known to have a dense atmosphere and stable liquid — lakes of methane, not water. Strong sound, straightforward meaning.

Kepler honors Johannes Kepler, the astronomer whose laws of planetary motion still hold up 400 years later, and it’s also the name of NASA’s exoplanet-hunting space telescope. Surname-style name, currently rare as a first name.

Ganymede is Jupiter’s largest moon — bigger than the planet Mercury — and in Greek myth was a Trojan prince taken to Olympus to serve as cupbearer to the gods. Long but distinctive, shortens naturally to “Gan” or “Mede.”

Name Meaning Origin Vibe
Mars Roman god of war; red planet Latin Punchy, popular
Jupiter King of the Roman gods; largest planet Latin Bold, rising fast
Saturn God of time and agriculture Latin Heavy, distinctive
Neptune God of the sea Latin Watery, unusual
Titan Race of giant gods; Saturn’s moon Greek Strong, single-syllable feel
Io Mythical priestess turned moon of Jupiter Greek Very short, modern
Triton Son of Poseidon; Neptune’s moon Greek Mythic, rare
Phobos Fear personified; Mars’ moon Greek Edgy, uncommon
Ganymede Trojan prince; Jupiter’s largest moon Greek Long, distinctive
Atlas Titan who holds up the sky Greek Popular, strong
Oberon King of the fairies (Shakespeare); Uranus’ moon English/German Literary, rare
Charon Ferryman of the dead; Pluto’s largest moon Greek Dark, sleek
Kepler For astronomer Johannes Kepler German (surname) Modern, rare
Halley For astronomer Edmond Halley English (surname) Comet association, unisex-read
Copernicus For astronomer Nicolaus Copernicus Polish/Latin Very rare, a mouthful
Nix Goddess of night; Pluto’s moon Greek Short, sharp
Vesta Goddess of the hearth; largest asteroid Latin Softer sound, usually feminine
Ceres Goddess of agriculture; dwarf planet Latin Usually feminine but crosses over
Larsen Not myth-based, but often paired thematically with ice-moon names Modern, informal pick
Umbriel Uranus’ moon, from Pope’s “The Rape of the Lock” Literary Literary, obscure

Sun and light names

If constellations feel too niche and planets feel too common, sun-and-light names split the difference — most are short, most translate directly to “sun,” “light,” or “radiant,” and several already exist as standard names in other cultures.

Sol is Latin for “sun” and has posted one of the sharpest climbs of any name on this list in recent SSA data — parents like the one syllable and the direct meaning. If your goal is uniqueness, this one’s no longer it.

Cyrus comes from Old Persian and is linked to the sun through its association with Cyrus the Great, whose name likely derives from a root meaning “like the sun.” Long history as a standalone name outside the space-name trend.

Uriel is Hebrew for “God is my light,” one of the archangels in Jewish and Christian tradition associated with illumination and wisdom rather than a specific star.

Name Meaning Origin Vibe
Sol Sun Latin Short, trending fast
Apollo Greek/Roman god of the sun and light Greek Popular, strong
Helios Personification of the sun Greek Direct, rising in use
Ra Egyptian sun god Egyptian Very short, bold
Lucius Light Latin Classic, wearable
Phaeton “Shining one,” Helios’ son Greek Mythic, cautionary tale attached
Cyrus Possibly “like the sun” Old Persian Established, not niche
Uriel God is my light Hebrew Meaningful, uncommon
Elio Sun (Italian form) Italian Soft, modern
Aurelio Golden, sun-touched Latin/Italian Warm, underused
Roshan Light, bright Persian Common in South Asia, rare in the West
Ziv Radiance Hebrew Very short, distinctive
Kiran Ray of light Sanskrit Common in India, fresh elsewhere
Zorion Adapted from “sun/happiness” roots Basque-inspired Very rare

Mythological sky gods

Every ancient culture had a god running the sky, the sun, or the thunder — and most of those names are still sitting there, unused, because parents default to Greek and Roman mythology and skip everything else.

Chandra is the Hindu god associated with the moon, and while it’s used for girls in some Western contexts, in Sanskrit tradition it’s a masculine deity name — worth knowing if you want a moon-linked name that isn’t Luna’s male equivalent by default.

Marduk was the chief god of Babylon, credited in Babylonian myth with organizing the stars into the calendar and setting the paths of the sun and moon. Heavy, ancient, essentially unused as a first name.

Freyr was the Norse god of sun and fertility, brother to Freya, worshipped for bringing good weather and harvests — a name that’s seen modest revival in Scandinavian countries but stays rare in English-speaking ones.

Name Meaning Origin Vibe
Zeus King of the Greek gods, ruler of the sky Greek Bold, a lot to live up to
Cronus Titan god of time, father of Zeus Greek Heavy, rare
Hermes Messenger god, linked to Mercury Greek Sleek, brand association (fashion house)
Osiris Egyptian god linked to Orion in myth Egyptian Distinctive, rising slowly
Thor Norse god of thunder and sky Norse Popular via Marvel
Freyr Norse god of sun and fertility Norse Rare, soft sound
Janus Roman god of transitions, two-faced sky god Latin Unusual, meaningful
Enki Sumerian god of sky and water wisdom Sumerian Very rare, ancient
Anu Sumerian sky god Sumerian Short, obscure
Marduk Babylonian god who organized the stars Babylonian Heavy, essentially unused
Surya Hindu sun god Sanskrit Common in India, fresh elsewhere
Chandra Hindu moon deity Sanskrit Meaningful, cross-cultural
Amun Egyptian god linked to the hidden/invisible sky Egyptian Ancient, rare
Belenus Celtic sun god Celtic Very rare, distinctive sound

Rare picks vs. names everyone already knows

Not every name on this list is actually rare, even though it sounds it. Based on recent U.S. naming data, Apollo, Atlas, Sol, Leo, Phoenix, Mars, and Orion have all moved into common territory — you’ll likely meet at least one at a birthday party. If uniqueness is the goal, look toward Alkaid, Norma, Grus, Indus, Kepler, Marduk, Enki, Zorion, and Belenus — names pulled straight from star catalogs and older mythologies that haven’t been filtered through baby-name blogs yet.

Sibling name pairings

Because myth and astronomy both run in families and pairs, several of these names double as ready-made sibling sets:

  • Castor and Pollux — the Gemini twins, an obvious matched pair
  • Perseus and Andromeda — hero and the princess he rescued, if you’re mixing genders
  • Atlas and Titan — both from the Titan generation of Greek myth
  • Helios and Elio — sun name, classic and modern version, for twins
  • Orion and Leo — two of the most recognizable constellations, easy to say together

FAQ

Are galaxy names for boys actually popular right now, or is this a niche trend? A handful — Apollo, Atlas, Sol, Leo, Orion — have real, documented climbs in U.S. Social Security Administration data over the past five to ten years. Most of the rest of this list stays well outside the top 1,000, which is what makes them useful if you want meaning without the popularity.

What’s a unique galaxy name for a boy that isn’t Orion or Apollo? Alkaid, Norma, Kepler, Marduk, and Belenus all carry real astronomical or mythological meaning and see almost no use as first names in English-speaking countries.

Do these names pair well with common middle names? Short, mythic first names like Atlas, Leo, and Sol tend to pair easily with a traditional middle name (Atlas James, Leo Michael) if you want one bold name balanced by one familiar one. Longer names like Ganymede or Copernicus read best with a short, simple middle name to keep the full name from getting unwieldy.

Is it a problem that some of these overlap with Harry Potter characters? Sirius and Draco both carry that association now for most people under 40. That’s not automatically a dealbreaker, but it’s worth knowing before you commit, since it will come up in conversation more often than the astronomy reference will.

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