| Name | Meaning | Details |
|---|---|---|
| Oberon | Noble Bear | View Details |
| Orinda | Pine Trees | View Details |
| Orsen | Bear Cub | View Details |
| Orsin | Bear Cub | View Details |
| Orsina | Bear | View Details |
| Orsino | Bear | View Details |
| Orson | Bear Cub | View Details |
| Osborn | God Bear | View Details |
| Osbourne | God Bear | View Details |
| Pemota | One Who Walks | View Details |
| Peña | One Who Walks | View Details |
| Petunia | Flower From Nightshade Family | View Details |
| Robles | Oak Trees | View Details |
| Samoset | He Who Walks Over Much | View Details |
| Sequester | Withdraw Into Solitude | View Details |