Spring Rainfrog 
Spurred Rain Frog 
Squirrel tree frog 
Sri Lanka rock frog 
Sri Lanka Wood Frog 
Sri Lankan Golden-backed frog 
Stained Tree Frog 
Starry Night Reed Frog 
Stauffer's Tree Frog 
Stony-creek frog 
Strawberry poison dart frog 
Striped burrowing frog 
Striped Marsh Frog 
Striped Poison Dart Frog 
Striped stream frog 
Stuart's Shrub Frog 
Stumpffia analanjirofo 
Stuttering Frog 
Sumaco horned treefrog 
Supata Poison Frog 
Tachiramantis tayrona 
Taiwan Common Toad 
Tanahrata Wart Frog 
Tarapoto Poison Frog