NAMES BY LETTER
Most popular baby names starting with O
Top 50 U.S. baby names starting with the letter O, ranked by total SSA births from 1910 to 2025.
| # | Name | Gender | Total U.S. births | Peak year | Origin |
|---|---|---|---|---|---|
| 1 | Olivia | F | 568,136 | 2014 | — |
| 2 | Oliver | M | 270,680 | 2024 | — |
| 3 | Owen | M | 246,320 | 2016 | — |
| 4 | Oscar | M | 214,168 | 2006 | — |
| 5 | Omar | M | 106,894 | 2007 | — |
| 6 | Opal | F | 74,257 | 1918 | — |
| 7 | Olive | F | 67,320 | 2022 | — |
| 8 | Olga | F | 62,070 | 1919 | — |
| 9 | Otis | M | 61,969 | 1920 | — |
| 10 | Ollie | F | 59,267 | 1919 | — |
| 11 | Orlando | M | 49,696 | 1987 | — |
| 12 | Ora | F | 44,894 | 1919 | — |
| 13 | Otto | M | 40,015 | 2024 | — |
| 14 | Orville | M | 35,220 | 1920 | — |
| 15 | Ola | F | 30,275 | 1921 | — |
| 16 | Oakley | M | 26,745 | 2024 | — |
| 17 | Ophelia | F | 25,785 | 2024 | — |
| 18 | Octavia | F | 24,117 | 2022 | — |
| 19 | Orion | M | 23,750 | 2018 | — |
| 20 | Odell | M | 19,034 | 1922 | — |
| 21 | Odessa | F | 18,718 | 1920 | — |
| 22 | Osvaldo | M | 14,538 | 2004 | — |
| 23 | Omari | M | 13,557 | 2018 | — |
| 24 | Odin | M | 13,282 | 2022 | — |
| 25 | Oaklynn | F | 11,863 | 2025 | — |
| 26 | Octavio | M | 11,454 | 2003 | — |
| 27 | Olin | M | 9,934 | 1921 | — |
| 28 | Oma | F | 9,779 | 1918 | — |
| 29 | Oren | M | 9,547 | 2025 | — |
| 30 | Ofelia | F | 8,997 | 1929 | — |
| 31 | Omer | M | 8,923 | 1918 | — |
| 32 | Onyx | M | 8,632 | 2023 | — |
| 33 | Odis | M | 8,400 | 1927 | — |
| 34 | Ocean | M | 8,233 | 2022 | — |
| 35 | Ona | F | 8,031 | 1916 | — |
| 36 | Orval | M | 7,928 | 1918 | — |
| 37 | Otha | M | 7,789 | 1917 | — |
| 38 | Olen | M | 7,678 | 1922 | — |
| 39 | Ocie | F | 6,871 | 1916 | — |
| 40 | Oaklee | F | 6,593 | 2023 | — |
| 41 | Orin | M | 6,299 | 2017 | — |
| 42 | Orrin | M | 5,985 | 1915 | — |
| 43 | Orpha | F | 5,974 | 1916 | — |
| 44 | Oswaldo | M | 5,902 | 2006 | — |
| 45 | Oralia | F | 5,763 | 1952 | — |
| 46 | Oleta | F | 5,472 | 1915 | — |
| 47 | Oaklyn | F | 5,400 | 2018 | — |
| 48 | Ouida | F | 4,886 | 1924 | — |
| 49 | Ottis | M | 4,647 | 1920 | — |
| 50 | Ossie | F | 4,594 | 1919 | — |
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