| Name | Babies | Alberta Rank |
|---|---|---|
| Olivia | 235 | 1 |
| Octavia | 25 | 151 |
| Ophelia | 21 | 193 |
| Oaklyn | 20 | 205 |
| Olive | 19 | 215 |
| Oaklynn | 13 | 311 |
| Oakley | 8 | 492 |
| Ocean | 8 | 492 |
| Oaklee | 3 | 1,052 |
| Oakleigh | 3 | 1,052 |
| Name | Babies | British Columbia Rank |
|---|---|---|
| Olivia | 256 | 2 |
| Olive | 25 | 146 |
| Octavia | 12 | 331 |
| Oakley | 8 | 485 |
| Opal | 7 | 556 |
| Ophelia | 6 | 632 |
| Ocean | 5 | 727 |
| Name | Babies | England and Wales Rank |
|---|---|---|
| Olivia | 5,017 | 1 |
| Orla | 537 | 107 |
| Olive | 368 | 148 |
| Ophelia | 177 | 283 |
| Ottilie | 159 | 310 |
| Oliwia | 155 | 322 |
| Olivia-Rose | 127 | 366 |
| Orlaith | 92 | 475 |
| Octavia | 56 | 719 |
| Ocean | 55 | 727 |
| Name | Babies | Northern Ireland Rank |
|---|---|---|
| Olivia | 191 | 3 |
| Orlaith | 22 | 116 |
| Orla | 15 | 155 |
| Orlagh | 10 | 208 |
| Oliwia | 8 | 247 |
| Oonagh | 5 | 339 |
| Olive | 3 | 533 |
| Orna | 3 | 534 |
| Olachi | 1 | 1,842 |
| Olibhia | 1 | 1,843 |
| Name | Babies | Ontario Rank |
|---|---|---|
| Olivia | 978 | 1 |
| Olive | 56 | 200 |
| Ophelia | 18 | 562 |
| Oviya | 7 | 1,262 |
| Ocean | 6 | 1,448 |
| Name | Babies | Puerto Rico Rank |
|---|---|---|
| Olivia | 11 | 138 |
| Name | Babies | Scotland Rank |
|---|---|---|
| Olivia | 529 | 1 |
| Orla | 144 | 29 |
| Orlaith | 37 | 131 |
| Orlagh | 25 | 191 |
| Olive | 11 | 336 |
| Oliwia | 9 | 383 |
| Olivia-Rose | 7 | 453 |
| Orlah | 7 | 453 |
| Ophelia | 4 | 675 |
| Olga | 3 | 798 |
| Name | Babies | South Australia Rank |
|---|---|---|
| Olivia | 123 | 2 |
| Olive | 20 | 78 |
| Orla | 5 | 312 |
| Octavia | 3 | 492 |
| Ocea | 2 | 756 |
| Olanna | 2 | 757 |
| Oona | 2 | 758 |
| Ophelia | 2 | 759 |
| Oaklee | 1 | 2,252 |
| Oakleigh | 1 | 2,253 |
| Name | Babies | USA Rank |
|---|---|---|
| Olivia | 18,632 | 2 |
| Olive | 1,241 | 256 |
| Ophelia | 760 | 416 |
| Oakley | 653 | 474 |
| Octavia | 502 | 593 |
| Oaklyn | 432 | 676 |
| Opal | 317 | 859 |
| Oaklynn | 304 | 886 |
| Oaklee | 278 | 942 |
| Oakleigh | 182 | 1,289 |
| Name | Babies | USA Territories Rank |
|---|---|---|
| Olivia | 14 | 1 |