- Saint Bernard
- Saint Berdoodle
- Saluki
- Samoyed
- Schapendoes
- Schipperke
- Schnauzer Giant
- Schnauzer Miniature
- Schnauzer Standard
- Schnoodle
- Scottish Deerhound
- Scottish Terrier
- Sealyham Terrier
- Shepadoodle
- Shetland Sheepdog / Sheltie
- Sheltie
- Shiba Inu
- Shih Tzu
- Shih-Poo / Shihpoo
- Shiloh Shepherd
- Siberian Husky
- Silky Terrier
- Skye Terrier
- Sloughi
- Soft Coated Wheaten Terrier
- South African Boerboel
- South Russian Ovcharka
- Spanish Water Dog
- Spinone Italiano
- Stabyhoun
- Staffordshire Bull Terrier
- Sussex Spaniel
- Swedish Vallhund
