Here are some unique names that start with the letter "P":
- Paxon
- Quinlan
- Phaedra
- Ptolemy
- Paloma
- Peridot
- Priya
- Persephone
- Phineas
- Pippin
- Pascaline
- Pallas
- Peryn
- Pravir
- Petal
If you need names from a specific cultural background or for a particular gender, let me know!