Girl Names That Start With O
These girl names that start with O come straight from US birth records: 624 different girl names starting with O were given to at least five babies in a single year. The list below starts with the 100 used most often, then splits them into names popular right now, rising names, rare finds and short or long picks.
O is a small letter, with 624 girl names. Olivia tops the older ranking and the present one, so it is far more familiar than anything else here.
If you like the sound but want something less common, Olive and Ophelia are both rising. Opal is another older pick that has returned to the current list.
A newer group follows the Oakley pattern, with Oaklyn and Oakleigh as variants. Those spellings differ only on paper, so pick the one easiest to read. That round opening vowel can merge with a family name ending in O, so test the pair.
- Girl names starting with O
- 624
- Most used ever
- Olivia 434,319 babies
- Most popular in 2017
- Olivia #2 overall
- Common endings
- -ia, -ie, -la
Top 100 girl names that start with O
Ranked by how many babies have been given each name since 1880. "Peak decade" is when the name was used most; "Trend" compares the ten years to 2017 with the ten years before.
| # | Name | Babies given the name | Peak decade | Rank in 2017 | Trend |
|---|---|---|---|---|---|
| 1 | Olivia | 434,319 | 2000s | #2 | Steady |
| 2 | Opal | 69,097 | 1920s | #855 | Rising |
| 3 | Olga | 61,429 | 1920s | #2,890 | Falling |
| 4 | Olive | 54,231 | 1910s | #255 | Rising |
| 5 | Ollie | 40,921 | 1920s | #2,183 | Rising |
| 6 | Ora | 38,952 | 1920s | #5,156 | Rising |
| 7 | Ola | 29,541 | 1920s | #6,770 | Steady |
| 8 | Ophelia | 17,549 | 1920s | #415 | Rising |
| 9 | Odessa | 17,519 | 1920s | #2,006 | Steady |
| 10 | Octavia | 15,781 | 1980s | #593 | Steady |
| 11 | Oma | 9,593 | 1920s | #10,624 | Rising |
| 12 | Ofelia | 8,318 | 1950s | #2,311 | Steady |
| 13 | Ona | 7,707 | 1920s | #4,667 | Rising |
| 14 | Orpha | 5,950 | 1910s | not given | Rising |
| 15 | Oralia | 5,674 | 1950s | #10,624 | Falling |
| 16 | Oleta | 5,463 | 1920s | not given | New |
| 17 | Ouida | 4,886 | 1920s | not given | Rare |
| 18 | Odell | 4,151 | 1920s | #15,794 | New |
| 19 | Ocie | 4,052 | 1910s | not given | New |
| 20 | Oakley | 3,420 | 2010s | #474 | Rising |
| 21 | Odalys | 3,171 | 2000s | #4,667 | Falling |
| 22 | Olympia | 3,057 | 1920s | #2,732 | Rising |
| 23 | Oriana | 3,005 | 2000s | #1,865 | Steady |
| 24 | Ossie | 2,916 | 1920s | not given | Rare |
| 25 | Odette | 2,866 | 2010s | #1,916 | Rising |
| 26 | Odelia | 2,524 | 1920s | #4,041 | Rising |
| 27 | Odalis | 2,511 | 2000s | #5,304 | Falling |
| 28 | Ozella | 2,277 | 1920s | not given | Rare |
| 29 | Oneida | 2,250 | 1920s | #15,794 | Falling |
| 30 | Olyvia | 2,214 | 2000s | #2,495 | Steady |
| 31 | Omega | 2,099 | 1920s | #15,794 | Steady |
| 32 | Olevia | 1,922 | 1920s | #15,794 | Steady |
| 33 | Oliva | 1,813 | 1990s | #5,622 | Steady |
| 34 | Onie | 1,786 | 1910s | not given | Rare |
| 35 | Otilia | 1,596 | 1920s | not given | Steady |
| 36 | Ocean | 1,589 | 2000s | #2,372 | Steady |
| 37 | Oneta | 1,465 | 1920s | not given | Rare |
| 38 | Osie | 1,354 | 1920s | not given | Rare |
| 39 | Olene | 1,347 | 1920s | not given | Rare |
| 40 | Ova | 1,329 | 1910s | not given | Rare |
| 41 | Oda | 1,325 | 1920s | not given | Rare |
| 42 | Ottie | 1,264 | 1910s | not given | Rare |
| 43 | Oaklee | 1,239 | 2010s | #940 | New |
| 44 | Ozie | 1,235 | 1920s | not given | Rare |
| 45 | Oletha | 1,214 | 1920s | not given | Rare |
| 46 | Odilia | 1,185 | 1940s | not given | Rising |
| 47 | Otelia | 1,184 | 1920s | not given | Rare |
| 48 | Onita | 1,162 | 1920s | not given | Rare |
| 49 | Oona | 1,161 | 2010s | #2,081 | Rising |
| 50 | Oretha | 1,158 | 1920s | not given | Rare |
| 51 | Omie | 1,145 | 1910s | not given | Rare |
| 52 | Onnie | 1,074 | 1920s | not given | New |
| 53 | Orianna | 1,073 | 2000s | #2,910 | Steady |
| 54 | Olinda | 1,066 | 1950s | #11,533 | Rising |
| 55 | Orene | 1,015 | 1920s | not given | Rare |
| 56 | Orelia | 968 | 1920s | #11,533 | New |
| 57 | Onalee | 912 | 1920s | #10,624 | Rising |
| 58 | Oksana | 908 | 1990s | #8,717 | Steady |
| 59 | Oceana | 879 | 2000s | #4,192 | Steady |
| 60 | Oneita | 869 | 1920s | not given | Rare |
| 61 | Olean | 856 | 1920s | not given | Rare |
| 62 | October | 821 | 2010s | #3,074 | Rising |
| 63 | Omayra | 814 | 1970s | not given | Falling |
| 64 | Odella | 798 | 1920s | not given | New |
| 65 | Ondrea | 793 | 1990s | #15,794 | Falling |
| 66 | Odile | 781 | 1910s | not given | Rare |
| 67 | Orla | 774 | 2010s | #6,485 | Rising |
| 68 | Ottilie | 756 | 1890s | #4,903 | New |
| 69 | Oaklyn | 752 | 2010s | #674 | Rising |
| 70 | Olena | 731 | 1920s | #8,717 | Rising |
| 71 | Othella | 708 | 1920s | not given | Rare |
| 72 | Oakleigh | 700 | 2010s | #1,284 | Rising |
| 73 | Orma | 699 | 1920s | not given | Rare |
| 74 | Olivette | 689 | 1920s | #11,533 | New |
| 75 | Oralee | 662 | 1920s | not given | Rare |
| 76 | Osa | 653 | 1890s | #14,025 | New |
| 77 | Orlena | 647 | 1910s | not given | Rare |
| 78 | Onika | 628 | 1970s | #9,885 | Steady |
| 79 | Odetta | 618 | 1920s | not given | Rare |
| 80 | Odessia | 605 | 1920s | not given | Rare |
| 81 | Orly | 605 | 2010s | #7,390 | Rising |
| 82 | Odessie | 597 | 1920s | not given | Rare |
| 83 | Oliviah | 581 | 2010s | #5,467 | Rising |
| 84 | Olivea | 574 | 2000s | #6,244 | Steady |
| 85 | Oneda | 574 | 1920s | not given | Rare |
| 86 | Onna | 566 | 2010s | #6,770 | Rising |
| 87 | Olla | 552 | 1920s | not given | Rare |
| 88 | Oaklynn | 548 | 2010s | #885 | New |
| 89 | Orlean | 543 | 1920s | not given | Rare |
| 90 | Ottilia | 530 | 1890s | #14,025 | New |
| 91 | Oumou | 520 | 2010s | #3,824 | Rising |
| 92 | Otila | 510 | 1920s | not given | Rare |
| 93 | Orva | 508 | 1920s | not given | Rare |
| 94 | Odyssey | 503 | 2000s | #7,787 | Steady |
| 95 | Ofilia | 472 | 1920s | not given | Rare |
| 96 | Opha | 427 | 1910s | not given | Rare |
| 97 | Odelle | 424 | 1910s | not given | Rare |
| 98 | Ovella | 418 | 1920s | not given | Rare |
| 99 | Orlene | 402 | 1920s | not given | Rare |
| 100 | Oceanna | 381 | 2000s | #10,624 | Steady |
Popular girl names starting with O right now
The most used O names for girls in 2017, with their national rank among all girl names.
- Olivia #2
- Olive #255
- Ophelia #415
- Oakley #474
- Octavia #593
- Oaklyn #674
- Opal #855
- Oaklynn #885
- Oaklee #940
- Oakleigh #1284
- Oriana #1865
- Odette #1916
- Odessa #2006
- Oona #2081
- Ollie #2183
- Ofelia #2311
- Ocean #2372
- Olyvia #2495
- Olympia #2732
- Olga #2890
- Orianna #2910
- October #3074
- Oumou #3824
- Odelia #4041
- Oaklie #4119
- Oluwadarasimi #4119
- Oceana #4192
- Ohana #4450
- Oliviana #4547
- Ona #4667
Rising girl names with O
Names used far more in the last ten years than in the ten years before.
- Olive
- Oakley
- Ophelia
- Opal
Unique and rare girl names that start with O
Real names that are still being given today but stay uncommon, so a child is unlikely to share it with a classmate.
- Oakley
- Oaklee
- Olyvia
- Oriana
- Oaklyn
- Oakleigh
- Ocean
- Oona
- Odalys
- Odette
- Oaklynn
- October
- Orianna
- Oliviah
- Odalis
- Olympia
- Oceana
- Oumou
- Oaklie
- Odelia
- Orla
- Orly
- Olivea
- Oliva
- Olivya
- Oksana
- Onna
- Odyssey
- Orli
- Onalee
Classic and vintage O names
Names that peaked before the 1960s. Many are now rare enough to feel fresh again.
- Opal 1920s
- Olga 1920s
- Olive 1910s
- Ollie 1920s
- Ora 1920s
- Ola 1920s
- Ophelia 1920s
- Odessa 1920s
- Oma 1920s
- Ofelia 1950s
- Ona 1920s
- Orpha 1910s
- Oralia 1950s
- Oleta 1920s
Short girl names that start with O
Four letters or fewer: easy to spell, easy to call across a playground.
- Opal
- Olga
- Ora
- Ola
- Oma
- Ona
- Ocie
- Onie
- Osie
- Ova
- Oda
- Ozie
- Oona
- Omie
- Orla
- Orma
- Osa
- Orly
- Onna
- Olla
Long girl names with O
Eight letters or more, often with ready-made nicknames.
- Oakleigh
- Olivette
- Ortencia
- Oluwadamilola
- Oluwakemi
- Oluwadarasimi
- Oliviana
- Oreoluwa
- Oluwanifemi
- Oluwatamilore
- Oluwatosin
- Omunique
- Olivianna
- Oliviagrace
- Onyinyechi
- Oluwatomisin
Girl names that start and end with O
Names that begin and end with the same letter, O.
- Olufunmilayo
- Oluwafunmilayo
- Olatokunbo
- Oluwafisayo
- Osiyo
Filter every girl name that starts with O
Narrow the full list by ending letters, length and popularity. The list updates as you type.
Looking for boy names too? See boy names that start with O, all names that start with O or the name finder for any letter and ending.
Questions people ask
What is the most popular girl name that starts with O?
Olivia is the most used girl name starting with O in US records, given to 434,319 babies since 1880.
How many girl names start with O?
US birth records list 624 different girl names starting with O, counting every name given to at least five babies in a year.
What are some unique girl names that start with O?
Uncommon names still in use include Oakley, Oaklee, Olyvia, Oriana, Oaklyn, Oakleigh.
Which girl names start and end with O?
Olufunmilayo, Oluwafunmilayo, Olatokunbo, Oluwafisayo, Osiyo all begin and end with O.
What are short girl names that start with O?
Short picks include Opal, Olga, Ora, Ola, Oma, Ona, Ocie.
Source: US Social Security baby name records for every name given to at least 5 babies in a year, from 1880 to 2017. Names are grouped as girl names when most babies given the name were girls.