Dibamus deharvengi is a legless lizard. It endemic to Vietnam and only known from its type locality in Binh Châu forest, Bà Rịa–Vũng Tàu province. The locality is a dipterocarp forest in the Binh Chau–Phuoc Buu Nature Reserve.
Dibamus deharvengi is named after the collector of the holotype. Louis Deharveng.