Maladera subinaequalis is a species of beetle of the family Scarabaeidae. It is found in India (Tamil Nadu).
Adults reach a length of about 9.2 mm. They have a reddish brown, short-oval body. The antennae are yellow. The labroclypeus is shiny, but the remainder of the dorsal surface is dull with white short setae.
The species name is derived from Latin sub- (meaning almost) and inaequalis (meaning inequal) and refers to the morphology of the parameres of the aedeagus.