Zhu Zaizhen (simplified Chinese: 朱载圳; traditional Chinese: 朱載圳; pinyin: Zhū Zàizhèn; 29 March 1537 – 9 February 1565) was a prince of the Ming dynasty. He was the fourth son of the Jiajing Emperor, and his mother was Consort Lu. In 1538, he was granted the title of Prince of Jing (景王).