Cathedral of the Immaculate Conception
Classification	Eastern Catholic
Polity	Episcopal
Pope	Francis
Primate	Joseph Werth

The Russian Greek Catholic Church (Russian: Российская греко-католическая церковь, Rossiyskaya greko-katolicheskaya tserkov; Latin: Ecclesiae Graecae Catholico Russica), Russian Byzantine Catholic Church or simply Russian Catholic Church, is a sui iuris Byzantine Rite Eastern Catholic jurisdiction of the worldwide Catholic Church. Historically, it represents the first reunion of members of the Russian Orthodox Church with the Roman Catholic Church. It is now in full communion with and subject to the authority of the Pope of Rome as defined by Eastern canon law.

Russian Catholics historically had their own episcopal hierarchy in the Russian Catholic Apostolic Exarchate of Russia and the Russian Catholic Apostolic Exarchate of Harbin, China. However, these offices are currently vacant. Their few parishes are served by priests ordained in other the Eastern Catholic Churches, former Eastern Orthodox priests, and Roman Catholic priests with bi-ritual faculties. The Russian Greek Catholic Church is currently led by Bishop Joseph Werth as Ordinary.