Narseh (whose name is also sometimes written as Narses or Narseus) is the seventh Sassanid King of Persia (293–302), and son of Shapur I (241–272).

During the rule of his father Shapur I, Narseh serves as the Viceroy of Sistan, Baluchistan and Sindh.

Prior to becoming King of Persia, he holds the title Great King of Armenia.

Narseh overthrows the increasingly unpopular Bahram III in 293 with the support of most of the nobility.

The circumstances of Narseh's rise to power are detailed in the Paikuli inscription.