Names starting with O
109 recorded names are covered; below are the top 100 by lifetime births.
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| # | Name | Rank 2025 | Total recorded births | Peak year | 10-year trend |
|---|---|---|---|---|---|
| 1 | Olivia | #1 | 567,345 | 2014 #2 | -15.5% |
| 2 | Opal | #423 | 73,539 | 1918 #94 | +80.0% |
| 3 | Olive | #197 | 66,926 | 2022 #159 | +29.5% |
| 4 | Olga | #3201 | 61,872 | 1918 #141 | +1.2% |
| 5 | Ollie | #2294 | 41,641 | 1919 #195 | +8.6% |
| 6 | Ora | #3760 | 39,278 | 1919 #203 | +20.0% |
| 7 | Ola | #8227 | 29,651 | 1921 #240 | -8.1% |
| 8 | Ophelia | #264 | 25,770 | 2024 #259 | +54.0% |
| 9 | Octavia | #308 | 23,978 | 2021 #248 | +72.4% |
| 10 | Odessa | #1197 | 18,564 | 1920 #304 | +25.0% |
| 11 | Oakley | #156 | 15,360 | 2025 #156 | +126.1% |
| 12 | Oaklynn | #153 | 11,766 | 2025 #153 | +239.2% |
| 13 | Oma | — | 9,598 | 1916 #366 | — |
| 14 | Ofelia | #2148 | 8,992 | 1929 #550 | +13.2% |
| 15 | Ona | #5868 | 7,939 | 1916 #468 | -18.5% |
| 16 | Orpha | — | 5,974 | 1917 #451 | +20.0% |
| 17 | Oralia | #8737 | 5,758 | 1952 #694 | -17.5% |
| 18 | Oaklee | #535 | 5,576 | 2023 #446 | +93.1% |
| 19 | Oleta | — | 5,472 | 1920 #459 | +40.0% |
| 20 | Oaklyn | #637 | 5,027 | 2018 #494 | +14.5% |
| 21 | Ouida | — | 4,886 | 1924 #612 | -53.8% |
| 22 | Odette | #883 | 4,239 | 2025 #883 | +86.9% |
| 23 | Odell | — | 4,151 | 1921 #542 | — |
| 24 | Ocie | #6055 | 4,132 | 1916 #567 | +518.2% |
| 25 | Oakleigh | #668 | 4,121 | 2023 #507 | +122.6% |
| 26 | Oriana | #1791 | 3,883 | 2003 #1355 | +18.0% |
| 27 | Ocean | #787 | 3,822 | 2022 #755 | +147.9% |
| 28 | Olympia | #2210 | 3,644 | 1981 #1250 | +15.1% |
| 29 | Odalys | #3821 | 3,424 | 1996 #681 | -2.4% |
| 30 | Ossie | — | 2,917 | 1919 #715 | — |
| 31 | Odelia | #2985 | 2,860 | 2024 #2916 | +34.7% |
| 32 | Olyvia | #3283 | 2,670 | 2009 #1774 | -32.5% |
| 33 | Odalis | #9306 | 2,645 | 1998 #890 | -11.2% |
| 34 | Ozella | #12853 | 2,338 | 1921 #865 | +3.3% |
| 35 | Oneida | — | 2,268 | 1919 #887 | -27.3% |
| 36 | Omega | #16650 | 2,186 | 1925 #1086 | -2.0% |
| 37 | Oliva | #7059 | 1,976 | 1990 #3273 | -17.2% |
| 38 | Olevia | — | 1,945 | 1921 #1079 | +109.1% |
| 39 | Onie | — | 1,786 | 1918 #899 | — |
| 40 | Onyx | #1410 | 1,783 | 2023 #1228 | +112.3% |
| 41 | Oona | #2768 | 1,776 | 2015 #1639 | -10.9% |
| 42 | Otilia | #6492 | 1,696 | 1935 #1195 | +72.5% |
| 43 | Odie | — | 1,589 | 1916 #912 | -10.0% |
| 44 | Oneta | — | 1,465 | 1922 #890 | +0.0% |
| 45 | Otha | — | 1,403 | 1922 #1153 | -36.4% |
| 46 | Orianna | #3094 | 1,378 | 2013 #2621 | -5.2% |
| 47 | Ova | — | 1,364 | 1919 #1016 | — |
| 48 | Osie | — | 1,354 | 1927 #1156 | +21.4% |
| 49 | Olene | — | 1,347 | 1922 #904 | -51.7% |
| 50 | Oda | — | 1,324 | 1918 #1147 | — |
| 51 | Ottie | — | 1,275 | 1917 #962 | — |
| 52 | Odilia | #7058 | 1,268 | 1922 #1357 | +124.0% |
| 53 | October | #3758 | 1,246 | 2008 #2606 | -9.0% |
| 54 | Ozie | — | 1,235 | 1922 #1154 | -54.8% |
| 55 | Oletha | — | 1,214 | 1923 #1223 | -62.3% |
| 56 | Orla | #2532 | 1,199 | 2024 #2525 | +119.6% |
| 57 | Otelia | — | 1,184 | 1923 #1346 | — |
| 58 | Onita | — | 1,162 | 1925 #1402 | +6.3% |
| 59 | Oretha | — | 1,158 | 1926 #1239 | -76.2% |
| 60 | Omie | — | 1,157 | 1920 #1226 | — |
| 61 | Oceana | #3562 | 1,147 | 2004 #2986 | +17.1% |
| 62 | Ozell | — | 1,116 | 1920 #1012 | -28.6% |
| 63 | Ottilie | #2951 | 1,093 | 2024 #2323 | +127.6% |
| 64 | Onnie | — | 1,079 | 1922 #1424 | — |
| 65 | Oscar | — | 1,070 | 1994 #4343 | -80.8% |
| 66 | Olinda | — | 1,066 | 1954 #1975 | — |
| 67 | Oksana | #7404 | 1,055 | 1995 #1860 | +42.6% |
| 68 | Orene | — | 1,015 | 1919 #1024 | -47.6% |
| 69 | Onalee | #11664 | 1,007 | 1928 #1307 | -14.3% |
| 70 | Orelia | #9935 | 991 | 1920 #1616 | +187.5% |
| 71 | Ozzie | #3694 | 963 | 2022 #2747 | +509.8% |
| 72 | Olena | #5866 | 920 | 2024 #4191 | +85.1% |
| 73 | Otis | — | 887 | 1927 #1445 | -47.4% |
| 74 | Osiris | #7405 | 883 | 2006 #3079 | +7.9% |
| 75 | Oneita | — | 869 | 1921 #1428 | -14.3% |
| 76 | Olean | — | 853 | 1921 #1328 | -54.5% |
| 77 | Odella | #12844 | 828 | 1919 #1313 | +100.0% |
| 78 | Orly | #4723 | 824 | 2013 #4403 | +0.8% |
| 79 | Omayra | — | 814 | 1970 #1485 | -61.3% |
| 80 | Ondrea | — | 795 | 1992 #3125 | -7.4% |
| 81 | Olivette | #5063 | 788 | 1920 #1503 | +62.8% |
| 82 | Odile | — | 788 | 1915 #1391 | — |
| 83 | Oliver | #5359 | 777 | 2022 #4875 | +35.1% |
| 84 | Oumou | #4146 | 759 | 2013 #3623 | -5.1% |
| 85 | Oaklie | #3063 | 748 | 2021 #2632 | +30.0% |
| 86 | Odyssey | #4958 | 734 | 2022 #3877 | +22.0% |
| 87 | Oliviah | #10707 | 717 | 2011 #3163 | -55.9% |
| 88 | Othella | — | 708 | 1921 #1400 | +0.0% |
| 89 | Orma | — | 699 | 1921 #1468 | -20.0% |
| 90 | Onika | #9311 | 691 | 1975 #2860 | -6.5% |
| 91 | Osa | #10713 | 683 | 1892 #633 | +127.3% |
| 92 | Owen | #4329 | 676 | 2021 #3862 | +12.0% |
| 93 | Oralee | — | 662 | 1919 #1476 | — |
| 94 | Onna | #8736 | 656 | 2015 #4376 | -21.4% |
| 95 | Orlena | — | 648 | 1921 #1852 | -2.6% |
| 96 | Olivea | #12847 | 644 | 2008 #3463 | -56.5% |
| 97 | Orion | #6491 | 630 | 2021 #3785 | -13.5% |
| 98 | Odetta | — | 628 | 1922 #1879 | — |
| 99 | Odessia | — | 601 | 1922 #1715 | — |
| 100 | Ottilia | #8232 | 597 | 1891 #569 | +100.0% |
Figures are from the U.S. Social Security Administration Popular Baby Names dataset (public domain). Names with fewer than 5 recorded births in a year or state are suppressed by the source.