Theloderma horridum is a species of frog in the family Rhacophoridae.

[1] This frog lives in lowland rainforests, where it specializes in old-growth forests, where it has been observed between 100 and 800 meters above sea level.

They have been observed in the leaf litter and sitting on tree trunks.

[1] The female frog lays eggs above the waterline in water-filled holes in trees.

[1] This frog's range includes several protected parks: Danum Conservation Area, Bukit Timah, Templer's Park Recreational Forest, Tanjung Biwah.