Husik I or Yusik (Armenian: Հուսիկ (reformed); Յուսիկ (classical); c. 295 – 347) was hereditary patriarch of the Armenian Church of the Gregorid line during the reign of the Arsacid king Tiran (r. 341–347?). He was the son of Vrtanes I, his predecessor as patriarch, and the grandson of Gregory the Illuminator, the founder of the Armenian Church. His patriarchate is dated to 341–347. He came into conflict with the monarchy and was assassinated on the king's orders. He is venerated as a saint in the Armenian Church.