Inland snake-eyed skink 
Isalo Skink 
Isla San Andres Anole 
Isla Vieques Dwarf Gecko 
Israeli Fan-fingered Gecko 
Italian wall lizard 
Italian wall lizard 
Jackson's Forest Lizard 
Jacksons chameleon 
Jacky dragon 
Japanese Grass Lizard 
Jararaca Pintada 
Jararacussu 
Jasper Cat Snake 
Javan Humphead Lizard 
Jayakar Lizard 
Jerdons Kukri Snake 
Jewelled chameleon 
Johnstons Chameleon 
JungleDragon 
Kalahari tree skink 
Kandyan Gecko 
Karimbola Cat Snake 
Karoo girdled lizard