- Papillon
- Parson Russell Terrier
- Patterdale Terrier
- Pekeapoo
- Pekingese
- Pembroke Welsh Corgi
- Perdiguero de Burgos
- Perro Cimarron
- Perro de Pastor Mallorquin
- Perro de Presa Canario
- Perro de Presa Mallorquin
- Perro de Toro
- Peruvian Hairless Dog (Perro Peruano sin Pelo)
- Peruvian Inca Orchid
- Petit Basset Griffon Vendeen
- Petit Bleu de Gascogne
- Petit Brabancon
- Petit Gascon Saintongeois
- Phalène
- Pharaoh Hound
- Phung San
- Picardy Shepherd – see Berger Picard
- Picardy Spaniel
- Pinscher – see Affenpinscher, Austrian Short-Haired Pinscher, Dobermann, German Pinscher, Harlequin Pincher, Miniature Pinscher, Swiss Shorthaired Pinscher
- Pit Bull – see American Pit Bull Terrier, American Staffordshire Terrier, American Bulldog, Staffordshire Bull Terrier
- Plott Hound
- Podenco Analuz
- Podenco Canario
- Podenco Galego
- Podenco Ibicenco – see Ibizan Hound
- Pointer – see English Pointer
- Poitevin
- Polish Scenthound (Gonczy Polski)
- Polish Greyhound – see Chart Polski
- Polish Sighthound – see Chart Polski
- Polish Hound (Polish Ogar)
- Polish Lowland Sheepdog (Polski Owczarek Nizinny or PON)
- Polish Tatra Sheepdog – see Owczarek Podhalanski
- Pomeranian
- Pont-Audemer Spaniel
- Poodle
- Porcelaine
- Portuguese Podengo (Portuguese Podengo)
- Portuguese Pointer
- Portuguese Shepherd Dog – see Cao da Serra de Aires
- Portuguese Water Dog
- Posavac Hound
- Prazsky Krysavik
- Pudelpointer
- Pug
- Puggle
- Pugnaces Britanniae
- Puli
- Pumi
- Pyrenean Mastiff
- Pyrenean Mountain Dog
- Pyrenean Shepherd