Guatemala Palm Pit Viper 
Gundlach's anole 
Günther's dwarf gecko 
Günther's Green Tree Snake 
Günther's Philippine Shrub Snake 
Guthega skink 
Hallowell's Coffee Snake 
Halys Pit Viper 
Harlequin Racerunner 
Helena's microgecko 
Helmeted Basilisk 
Hemidactylus alkiyumii 
Hemidactylus brookii 
Hemidactylus mercatorius 
Hemidactylus parvimaculatus 
Henkels Leaf-tailed Gecko (Uroplatus henkeli) 
Herald snake or Red-lipped snake 
Hernandez’s Helmeted Basilisk 
Highland Copperhead 
Hispaniolan boa 
Hispaniolan Grass Anole 
Hispaniolan Green Anole 
Hispaniolan masked curly-tailed lizard 
Hokou Gecko