Wang Zhongsi (Chinese: 王忠嗣; 704?-748?), né Wang Xun (王訓), was a Chinese military general and politician during the Tang Dynasty. Because of how his father Wang Haibin (王海賓) had died in army service, Emperor Xuanzong took him and raised him in the palace, and subsequently entrusted him with army commands. Eventually, though, he was accused of intentionally hindering an attack on Tubo, and was demoted. He died the following year.