宰德派，又译塞义德派、扎伊迪派，是伊斯兰教什叶派的分支，又称五伊玛目派。由第三任伊玛目侯赛因之孙塞义德·本·阿里的追随者所组成。

目前阿拉伯半岛上的也门共和国40%人口为宰德派。

Zaidiyyah or Zaidism (Arabic:الزيدية‎ az-zaydiyya, adjective form Zaidi or Zaydi) is an early sect which emerged in the eighth century out of Shi'a Islam, named after Zayd ibn ʻAlī, the grandson of Husayn ibn ʻAlī. Followers of the Zaydi Islamic jurisprudence are called Zaydi Shi'a and make up about 35-40% of Muslims in Yemen.