Romers tree frog 
Roque tree frog 
Rosenberg's Gladiator Tree Frog 
Rosy Ground Frog 
Rough-sided frog 
Rough-skinned Green Treefrog 
Round-snout Pygmy Frog 
Rufous-eyed brook frog 
Sabah Earless Toad 
Sabinal Frog 
Sachatamia ilex 
Saddled Tree Frog 
Saffron Bellied Frog 
Sahara Frog 
San Carlos tree frog 
San Jose Cochran frog 
Santa Cecilia Glass Frog 
Santa Cecilia Rocket Frog 
Sara Tree Frog 
Sarawak Dwarf Toad 
Sarawak Slender Litter Frog 
Sarayacu Tree Frog 
Sardinian tree frog 
Savage's thin-toed frog