Mattai

Mattai may refer to:


 * Mar Mattai Monastery, the traditional see of the Orthodox maphrian in Bartella
 * Mar Matti or Matthew the Hermit
 * Nittai of Arbela or Mattai of Arbela, av beit din of the Sanhedrin under the nasi Joshua ben Perachyah at the time of John Hyrcanus (reigned 134–104 BCE)