Table of Contents
- Why space names are having a moment
- How we sorted these
- Constellation names
- Star names
- Planet and moon names
- Sun and light names
- Mythological sky gods
- Rare picks vs. names everyone already knows
- Sibling name pairings
- FAQ
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.

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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