The Most Popular Boy Baby Names From 2005 Starting On O.
Looking for a boy baby name starting on O? These were the 100 most popular names
from 2005 - sorted by popularity. Click on a name to learn more. The rank next to each name is the position on the overall top list for boys
this specific year.
| Rank | Name | How Unique? | Total births this year |
|---|---|---|---|
| 60 | Owen | 1 in 248 (0.4%) | 7,164 |
| 117 | Oscar | 1 in 516 (0.19%) | 3,440 |
| 136 | Omar | 1 in 604 (0.17%) | 2,943 |
| 209 | Oliver | 1 in 999 (0.1%) | 1,778 |
| 369 | Orlando | 1 in 2,304 (0.04%) | 771 |
| 417 | Omarion | 1 in 2,898 (0.03%) | 613 |
| 486 | Osvaldo | 1 in 3,796 (0.03%) | 468 |
| 560 | Orion | 1 in 4,651 (0.02%) | 382 |
| 651 | Omari | 1 in 6,234 (0.02%) | 285 |
| 668 | Octavio | 1 in 6,532 (0.02%) | 272 |
| 685 | Oswaldo | 1 in 6,833 (0.01%) | 260 |
| 1123 | Obed | 1 in 18,129 (0.01%) | 98 |
| 1171 | Osiel | 1 in 19,741 (0.01%) | 90 |
| 1221 | Om | 1 in 21,934 (0%) | 81 |
| 1251 | Otto | 1 in 23,074 (0%) | 77 |
| 1376 | Osbaldo | 1 in 27,761 (0%) | 64 |
| 1377 | Osmar | 1 in 27,761 (0%) | 64 |
| 1447 | Otis | 1 in 31,726 (0%) | 56 |
| 1480 | Odin | 1 in 33,522 (0%) | 53 |
| 1547 | Osman | 1 in 37,014 (0%) | 48 |
| 1568 | Oziel | 1 in 37,802 (0%) | 47 |
| 1601 | Oskar | 1 in 39,482 (0%) | 45 |
| 1806 | Osiris | 1 in 52,255 (0%) | 34 |
| 1878 | Olivier | 1 in 57,312 (0%) | 31 |
| 1899 | Ocean | 1 in 59,223 (0%) | 30 |
| 1928 | Oren | 1 in 61,265 (0%) | 29 |
| 2079 | Omer | 1 in 74,028 (0%) | 24 |
| 2337 | Ori | 1 in 98,704 (0%) | 18 |
| 2507 | Oumar | 1 in 118,445 (0%) | 15 |
| 2565 | Oakley | 1 in 126,905 (0%) | 14 |
| 2566 | Omarian | 1 in 126,905 (0%) | 14 |
| 2567 | Ozzie | 1 in 126,905 (0%) | 14 |
| 2568 | Ozzy | 1 in 126,905 (0%) | 14 |
| 2811 | Olin | 1 in 161,516 (0%) | 11 |
| 2812 | Oneil | 1 in 161,516 (0%) | 11 |
| 2926 | Octavius | 1 in 177,668 (0%) | 10 |
| 2927 | Oluwatobi | 1 in 177,668 (0%) | 10 |
| 2928 | Otoniel | 1 in 177,668 (0%) | 10 |
| 3005 | Ousmane | 1 in 197,408 (0%) | 9 |
| 3248 | Omero | 1 in 253,811 (0%) | 7 |
| 3249 | Omid | 1 in 253,811 (0%) | 7 |
| 3250 | Ousman | 1 in 253,811 (0%) | 7 |
| 3526 | Ociel | 1 in 296,113 (0%) | 6 |
| 3527 | Ohm | 1 in 296,113 (0%) | 6 |
| 3528 | Oryan | 1 in 296,113 (0%) | 6 |
| 3529 | Oswald | 1 in 296,113 (0%) | 6 |
| 4041 | Obadiah | 1 in 355,335 (0%) | 5 |
| 4042 | Octavious | 1 in 355,335 (0%) | 5 |
| 4043 | Oleg | 1 in 355,335 (0%) | 5 |
| 4044 | Oluwatimilehin | 1 in 355,335 (0%) | 5 |
| 4045 | Oran | 1 in 355,335 (0%) | 5 |
Source: U.S. Social Security Administration · Data through 2025 · Updated 2026
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