- Peaches
- Petrie (Petri)
- Patty-Cake
- Puck
- Path
- Pebbles
- Pooh Bear
- Petie
- Popcorn
- Preston
- Picasso
- Pittbull
- Perry
- Pastel
- Poet
- Piggy
- Perdy
- Purrscilla
- Pus
- Poochie
- Pepsi
- Petunya
- Pup (Pups)
- Poindexter
- Pipsqueak
- Powder Puff
- PA
- PJ
- Pineapple
- Panda
- Pan
- Pegasus
- Phoebe
- Polly (Pollie)
- Paprika
- Perrito (little dog)
- PITA (pain in the ass)
- Piper
- Psyduck
- Palmer
- Pandora
- Paris
- Parker
- Pickles
- Princess
- Paws
- Primister
- Presley
- Pepper
- Prankster
- Prissy
- Pretzel
- Piddles
- Peanut
- Peter
- Patch
- Patches
- Paddy
- Peepers
- Poncho
- Phidget
- Purrfect
- Pusemor
- Professor Plum
- Pickels
- Psycho
- Pooh
- Pop
- Pat
- Petunia
- Pretty Boy
- Pluma (feathers)
- PePe
- Penelope
- Prometheus
- Pinkie
- Purza
- Patience
- Penny Pooh
- Partavious (Party)
- Pathos
- Pavin J. Puddymeister
- Peeka (and Boo)
- Pinquo
- Pippin
- Psyco
- Pepperdine
- Proncess
- Powder
- Puff
- Pudgy
- Pride
- Prince
- Prasillia
- Precious
- Pumba
- Pumpkin
- Panzer
- Pooky
- Pat The Cat
- Popeye
- Paco
- Poco
- Pugsley
- Paisha
- Pickle Fish
- Porkchop
- Punky
- Penny
- Psoplesoslevik
- Pete
- Purdy
- Pearl
- Phoenix
- Pätu
- Paris
- Perseus
- Poopers
- Persie (Pursie)
- Presilla
- Purr Box
- Poggibonski
- Pikachu
- Playboy
- Playgirl
- Poe
- Popoki (Hawaiian for cat)
- Prescott
