| Person's Name | Language | Explanation |
| Olive | English | From the English word for the type of tree, ultimately derived from Latin oliva. |
| Olivette | English | Pet form of OLIVE |
| Ornella | Italian | Means "flowering ash tree" in Italian. |
| Orvokki | Finnish | Means "pansy flower" in Finnish. |
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| Person's Name | Language | Explanation |
| Padma | Indian | Means "lotus" in Sanskrit. In Hindu myth this was another name of both the hero Rama and the goddess Lakshmi. |
| Padmavati | Indian | Means "like a lotus", derived from the Sanskrit word padma "lotus" combined with vati "resembling". In Hindu legend this was the name of the foster-mother of Skanda. |
| Padmini | Indian | Means "full of lotuses" from the Sanskrit word padma "lotus" combined with ini "having". |
| Pansy | English | From the English word for a type of flower, ultimately deriving from Old French pensee "thought". |
| Peony | English | From the English word for the type of flower. It was originally believed to have healing qualities so was named after the Greek medical god Pæon. |
| Petunia | English | From the name of the flower, derived ultimately from a Tupi (South American) word. |
| Poppy | English | Simply means "poppy" from the name of the red flower. |
| Primrose | English | From the English word for the flower, ultimately deriving from Latin prima rosa "first rose". |
| Primula | English | From the English word for the flower, another name for the primrose, which is derived from the Latin word primulus meaning "very first". |
| Pushpa | Indian | Means "flower" in Sanskrit. |
| Sources: Compilation from Behind the Name website. |
