Tetraserica crenatula is a species of beetle of the family Scarabaeidae. It is found in India (Arunachal Pradesh).
Adults reach a length of about 8.2 mm. They have a reddish brown, oval body. The antennae are yellowish. The dorsal surface is mostly dull and very sparsely setose.
The species name is derived from Latin crenatulus and refers to the distinctly impressed elytral striae.