Quevedo Snouted Tree Frog 
Red Snouted Tree Frog 
Red-eyed tree frog 
Red-Skirted Treefrog 
Reticulated tree frog 
Rio Napo Spiny-backed Frog 
Roque tree frog 
Rosenberg's Gladiator Tree Frog 
Rough-skinned Green Treefrog 
Rufous-eyed brook frog 
San Carlos tree frog 
Sara Tree Frog 
Sarayacu Tree Frog 
Sardinian tree frog 
Screaming tree frog 
Short-footed Frog 
Sierran Chorus Frog 
Sipurio snouted treefrog 
Slender Tree Frog 
Southern Brown tree frog 
Southern cricket frog 
Spiny-headed tree frog 
Spotted-thighed tree frog 
Spring peeper