Maladera siniaevi is a species of beetle of the family Scarabaeidae. It is found in India (Assam, Bihar, Chhattisgarh, Madhya Pradesh, Meghalaya, Nagaland, West Bengal, Arunachal Pradesh, Sikkim), Myanmar, Bhutan and China (Xizang).
Adults reach a length of about 11.7âÂÂ12.8 mm. They have a dark brown, oval body. The upper surface is mostly dull and glabrous, except for the lateral cilia of the pronotum and elytra.
The species is named after its collector, V. Sinaev.