Neoserica champassakensis is a species of beetle of the family Scarabaeidae. It is found in Laos.
Adults reach a length of about 4âÂÂ4.1 mm. They have a brown, short-oval body. The antennal club, legs, a large spot on the disc of the elytra and the posterior pronotum are all yellowish brown. The dorsal surface is mostly dull and nearly glabrous.
The species is named after its occurrence in the Champassak province.