Catholicos Zacharias I of Armenia was the Catholicos of the Armenian Apostolic Church between 855 and 876. During his reign a severe earthquake rocked Dvin, during which Zacharias offered powerful prayers. It is said his prayers protected Dvin's church from damage. He died in the twenty-second year of his rule and was buried in Dvin's "cemetery of the holy fathers".
| Preceded by John IV of Armenia |
Catholicoi of the Holy See of St. Echmiadzin and All Armenians 855–876 |
Succeeded by George II of Armenia |