September babies arrive at the most poetic time of year.
Not quite summer anymore, not quite autumn yet — September sits in that golden in-between space where everything feels rich and alive and slightly bittersweet. September babies are either Virgos or Libras, born under two of the most thoughtful and aesthetically minded signs of the zodiac. Their birthstone is the sapphire — deep blue, precious, and extraordinarily beautiful. Their birth flowers are the aster and the morning glory.
If your baby is arriving this September, this list is for you.
I put together 55 names for girls and boys — some inspired by September itself, some by its sapphire birthstone, some by the first golden hints of autumn, and some by the particular quality of someone born at the turn of the season.
September Baby Girl Names
September girl names carry a quality that is hard to find in any other month’s naming tradition. They tend to be either quietly luminous — like the sapphire birthstone — or warmly earthy, like the first autumn leaves just starting to turn.
Every name in this section carries something that belongs to September — its colors, its gems, its flowers, its zodiac energy, or that specific feeling of standing at the edge of something beautiful about to change.
1. Sapphire
- Origin: Greek / Hebrew
- Meaning: Precious blue gemstone
September’s birthstone worn directly as a name. Bold, vivid, and almost never used which makes it genuinely extraordinary for a September baby.
2. Aurelia
- Origin: Latin
- Meaning: Golden
September light turns golden in a way that feels like a farewell gift from summer. Aurelia carries all of that warm, glowing richness in one flowing name.
3. Celeste
- Origin: Latin / French
- Meaning: Heavenly, of the sky
September skies have a clarity and depth that summer rarely manages. Celeste captures that open, heavenly quality perfectly.
4. Aster
- Origin: Greek
- Meaning: Star, a wildflower
September’s birth flower. Asters bloom in purples and pinks just as summer fades and they carry a beautiful defiant quality — blooming when everything else is winding down. A September name through and through.
5. Indigo
- Origin: Greek / Nature name
- Meaning: Deep blue-purple dye from a plant
Sapphires are deep blue. September skies at dusk are deep indigo. Indigo as a name is vivid, bold, and carries that beautiful deep color quality.
6. Seraphina
- Origin: Hebrew
- Meaning: Fiery ones, seraphim
Virgos — September’s first zodiac sign — are known for their precision, intelligence, and depth. Seraphina carries that same quality of something extraordinary working quietly beneath the surface.
7. Lavinia
- Origin: Roman
- Meaning: Woman of Latium, pure
There is something about September that feels classical and slightly literary. Lavinia carries that same quality — elegant, rooted, full of quiet history.
8. Elara
- Origin: Greek
- Meaning: One of Jupiter’s moons
September nights are some of the clearest of the year for stargazing. Elara is cosmic, rare, and carries a beautiful celestial quality.
9. Marigold
- Origin: English
- Meaning: Mary’s gold, a bright orange flower
Not September’s official birth flower but deeply connected to the early autumn season. Marigolds bloom vivid and bold as summer closes and the name carries all of that warm defiance.
10. Isolde
- Origin: Celtic / Welsh
- Meaning: Ice ruler, beautiful
September has a beautiful melancholy to it — one of the most romantic months of the year. Isolde carries that same deeply romantic, slightly bittersweet quality.
11. Clara
- Origin: Latin
- Meaning: Bright, clear
September days when they are clear are extraordinarily bright — the summer haze gone, the light sharp and clean. Clara captures that perfectly.
12. Wren
- Origin: Old English
- Meaning: Small bird
Wrens are particularly active in September before the colder months arrive. As a name Wren carries that small, fierce, completely alive quality.
13. Elowen
- Origin: Cornish
- Meaning: Elm tree
Elm trees begin their autumn transformation in September. Elowen is rare, lyrical, and carries a beautiful Celtic natural quality.
14. Rowan
- Origin: Scottish Gaelic
- Meaning: Little red one, rowan tree
Rowan berries are at their most vivid red in September. A deeply seasonal nature name that carries Celtic protection folklore alongside its beauty.
15. Halcyon
- Origin: Greek
- Meaning: Calm and peaceful days
The halcyon days are said to occur in the period around the autumn equinox — warm, still, and beautiful before winter arrives. A name that belongs completely to this in-between season.
16. Lyra
- Origin: Greek
- Meaning: Lyre, a stringed instrument
Lyra is one of the most visible constellations in September skies. Music, stars, and a beautiful celestial quality in four letters.
17. Beatrix
- Origin: Latin
- Meaning: She who makes happy, blessed
Virgos are known for their warmth, precision, and desire to be genuinely helpful. Beatrix carries that same quality of bringing real happiness through attention and care.
18. Sable
- Origin: French / English
- Meaning: Black fur, jet black
September twilights come earlier and have a richness to them. Sable carries that deep, velvety quality of an early autumn evening.
19. Delphine
- Origin: French / Greek
- Meaning: Dolphin, woman from Delphi
There is something mystical about September — the equinox, the turning of the year. Delphine carries that beautiful mystical quality alongside its French elegance.
20. Orla
- Origin: Irish
- Meaning: Golden princess
Golden is September’s color more than any other and Orla carries that warmth in a name that is both rare and beautifully Celtic.
21. Eudora
- Origin: Greek
- Meaning: Generous gift
September babies are genuinely a generous gift arriving at a generous time of year. Eudora carries that meaning beautifully and is almost never heard in modern naming.
22. Violet
- Origin: Latin / English
- Meaning: Purple flower
Sapphires are deep blue-purple. Morning glories — September’s other birth flower — bloom in purple. Violet carries that color quality beautifully.
23. Thessaly
- Origin: Greek / Place name
- Meaning: A region of ancient Greece
September feels classical and ancient in the best possible way. Thessaly is unusual, bold, and carries a beautiful ancient Greek quality.
24. Libra
- Origin: Latin
- Meaning: Scales, balance
September’s second zodiac sign from the 23rd onward. Bold as a given name, carrying the most elegant and balanced energy of the whole zodiac.
25. Niamh
- Origin: Irish
- Meaning: Bright, radiant
Pronounced “Neev.” September light has an extraordinary radiance to it — clear and sharp and deeply beautiful. Niamh captures that luminous quality.
26. Vivienne
- Origin: French / Latin
- Meaning: Alive, lively
September feels fully alive — everything at its richest before the quiet of winter. Vivienne carries that same sense of vivid, full-bodied life.
27. Ember
- Origin: English
- Meaning: Glowing coal, warm light
September evenings are when you first start lighting candles again. Ember carries that warm, glowing quality of the season turning.
September Baby Boy Names
September boy names carry the thoughtful, grounded energy of someone born at the turn of the season. Neither fully summer nor fully autumn — someone who sits comfortably in the in-between and sees both sides clearly.
Every name here suits a September baby boy — through the sapphire birthstone, the autumn colors beginning to show, the clear stargazing skies, or the particular quality of the Virgo and early Libra personality.
28. Jasper
- Origin: Persian
- Meaning: Treasurer, a gemstone
Jasper comes in the deep blues and rich golds that belong completely to September. Warm, rich, and one of the most beautifully seasonal boy names around.
29. Orion
- Origin: Greek mythology
- Meaning: Rising in the sky, great hunter
Orion begins rising in September skies and becomes one of the defining constellations of autumn. A name for a boy born under extraordinary skies.
30. Leif
- Origin: Old Norse
- Meaning: Heir, leaf, beloved
Leaves are just beginning their transformation in September. Leif connects directly to that word and carries a beautiful Norse quality alongside the seasonal resonance.
31. Caspian
- Origin: Literary / Place name
- Meaning: Of the Caspian Sea
September has that deep, vast quality — everything richening and darkening slightly. Caspian carries that same sense of depth and mystery beautifully.
32. Magnus
- Origin: Latin / Scandinavian
- Meaning: Great, mighty
September makes one last bold statement before the quiet arrives. Magnus carries that same bold, powerful quality.
33. Arlo
- Origin: Old English
- Meaning: Fortified hill
Warm and grounded. Arlo has a golden, late-summer quality that feels completely at home in September.
34. Dorian
- Origin: Greek
- Meaning: Gift, child of the sea
September has a literary, slightly melancholy quality. Dorian carries that same beautiful, slightly mysterious depth.
35. Fletcher
- Origin: Middle English
- Meaning: Arrow maker
A craft name rooted in skill and precision — qualities deeply associated with the Virgo personality. Fletcher carries a warm, outdoorsy September quality.
36. Reid
- Origin: Scottish
- Meaning: Red-haired, red
Red is just beginning to appear in September landscapes. Reid captures that first warm flush of autumn color in one short, clean name.
37. Aurelius
- Origin: Latin
- Meaning: Golden
Marcus Aurelius wrote the Meditations — a book about patience, observation, and finding meaning in each moment. All of those qualities feel very September. Aurelius carries both that intellectual legacy and the golden quality of the season.
38. Stellan
- Origin: Scandinavian
- Meaning: Calm, peaceful
September has a calmness to it that very few months manage. Stellan is warm, Scandinavian, and carries a beautiful peaceful quality.
39. Idris
- Origin: Welsh / Arabic
- Meaning: Ardent lord, fiery leader
Idris is a giant in Welsh mythology associated with astronomy and the stars. September skies are extraordinary for stargazing and Idris carries that connection beautifully.
40. Sirius
- Origin: Greek
- Meaning: Glowing, scorching
Sirius — the brightest star visible from Earth — is prominent in September skies. Bold, cosmic, and carries a beautiful stargazing quality for a boy born under clear autumn skies.
41. Gideon
- Origin: Hebrew
- Meaning: Mighty warrior, feller of trees
Libras born in late September are known for their quiet inner strength. Gideon carries that same determined, principled quality.
42. Barnabas
- Origin: Hebrew / Aramaic
- Meaning: Son of encouragement
Warm and rare. Barnabas carries a beautiful meaning and is genuinely one of the most distinctive choices for a September boy.
43. Solomon
- Origin: Hebrew
- Meaning: Peace, wise
Wisdom is the quality most associated with the Virgo and Libra personalities of September. Solomon carries that deep, calm wisdom beautifully.
44. Forest
- Origin: Old French
- Meaning: From the woods
September forests are extraordinary — still fully green but carrying the first hints of gold. Forest places its bearer right in the heart of that season.
45. Sterling
- Origin: Old English
- Meaning: Of high quality, genuine
Libras value quality, balance, and genuine beauty above everything else. Sterling carries all of those qualities in one clean, distinguished name.
46. Peregrine
- Origin: Latin
- Meaning: Traveler, pilgrim, wanderer
Peregrine falcons are one of September’s most spectacular sights — migrating south in vast numbers. A nature name that connects directly to the season’s wild beauty.
47. Callum
- Origin: Scottish Gaelic
- Meaning: Dove
September has a peaceable quality to it — the pace of life shifting, the world settling slightly. Callum carries that peaceful, grounded quality.
48. Emrys
- Origin: Welsh
- Meaning: Immortal
Deeply rooted in Welsh mythology and connected to the great tradition of Welsh stargazing and astronomy. Emrys is rare, mystical, and completely distinctive.
49. Cormac
- Origin: Irish Gaelic
- Meaning: Charioteer, raven son
Ravens are one of September’s most iconic birds. Cormac carries a deep Irish Celtic quality that suits the mood of the season beautifully.
Unisex September Names
These names carry the spirit of September without sitting on one side of any line. Beautiful for any baby born in this extraordinary in-between month.
50. Indigo
Already in the girls section but Indigo is genuinely unisex and works beautifully for any September baby. Deep, vivid, and connected to the sapphire color of the month.
51. Rowan
Already in the girls section. Rowan is one of the most beautifully unisex September names — earthy, Celtic, and connected directly to the season.
52. Ember
Already in the girls section. Ember is genuinely unisex and works beautifully for any child born as the season begins to warm indoors.
53. Lyra
Already in the girls section but Lyra is used across genders in several cultures and is genuinely one of the most beautiful unisex September names.
54. Wren
Already in the girls section. Wren is one of the most perfectly unisex nature names available and works beautifully for any September baby.
55. Sol
- Origin: Latin
- Meaning: Sun
September sun is precious — lower in the sky, golden, and more appreciated than at any other time of year. Sol is short, warm, and carries that same precious quality for any baby.
Wrapping Up
September babies arrive at one of the most quietly beautiful moments of the year.
Rich in color, clear in light, and full of that particular feeling of something extraordinary about to change. Every name on this list was chosen because it carries a piece of that September magic.
Save this to your Pinterest board so you can find it again. And if you know a mama expecting a September baby, share this with her — she will love it.