Erzhu Shilong (爾朱世隆) (500–532), courtesy name Rongzong (榮宗), was an official of the Chinese/Xianbei dynasty Northern Wei. He first became prominent when after his cousin Erzhu Rong overthrew Emperor Xiaoming's mother Empress Dowager Hu (after she poisoned Emperor Xiaoming) and made Emperor Xiaozhuang emperor. Later, when Emperor Xiaozhuang killed Erzhu Rong in 530, Erzhu Shilong participated in the counterattack that overthrew Emperor Xiaozhuang, and thereafter controlled the imperial government during the reign of Emperor Jiemin. When the general Gao Huan, in turn, rebelled in response to Emperor Xiaozhuang's death, the officials in the imperial capital Luoyang rebelled against the Erzhus, and Erzhu Shilong was executed after failing to flee Luoyang.
Erzhu Shilong was a cousin of Erzhu Rong and a fellow member of the ethnic Xiongnu Qihu (契胡) tribe, of which Erzhu Rong was chief. (They were at most as close as second cousins, as they did not have the same grandfather.) Unlike Erzhu Rong, who served his entire career as a general and not a civilian official, Erzhu Shilong was part of the imperial administration during the reign of Emperor Xiaoming, although he became a commander of the imperial guards as well.