This frog named after Dutch Naturalist Johan Conrad van Hasselt.

[2] According to the current understanding, this species is known with certainty only from Java (also the type locality), Madura, Bali, and Kangean Islands, Indonesia.

[5][7] Leptobrachium hasseltii has a large head that is wider than the body and with large eyes with a scarlet coloured iris, tips of digits round and webbed at the base, and smooth skin.

Adults are dark above, patterned with darker circles, with a white ventral surface with black blotches.

[4] Leptobrachium hasseltii inhabits the forest floor litter of montane and lowland rainforests.