Neoserica tamdaoensis is a species of beetle of the family Scarabaeidae. It is found in Vietnam.
Adults reach a length of about 7.1âÂÂ9 mm. They have a black, short-oval body. Part of the upper surface has a greenish shimmer. They are mostly dull with dense light hairs, interspersed with dense, long, strong, dark hairs. The underside is densely haired.
The species is named after the type locality, Tam Dao.