Duttaphrynus, named after Sushil Kumar Dutta, is a genus of true toads endemic to southwestern and southern China, Taiwan and throughout southern Asia from northern Pakistan and Nepal through India and Bangladesh to Sri Lanka, Andaman Island, Sumatra, Java, Borneo and Bali.

Duttaphrynus melanostictus is commonly called Asian common toad, Asian black-spined toad, Asian toad, black-spectacled toad, common Sunda toad, and Javanese toad. It is probably a complex of more than one true toad species that is widely distributed in South and Southeast Asia.