Maladera juntongi is a species of beetle of the family Scarabaeidae. It is found in China (Hainan).
Adults reach a length of about 10.2 mm. They have a dark brown, oblong-oval body. The antennae are yellowish. The surface is glabrous and dull (but the labroclypeus is shiny).
The species is named in honour of one of its collectors, Lang Juntong.