Joseph Velamin-Rutski (born as Ivan Velyaminov; Belarusian: Язэп Руцкі, Russian: Иосиф Рутский, Ukrainian: Йосиф Рутський, Polish: Józef Welamin Rucki[1]) - (1574 – 5 April 1637) was the "Metropolitan of Kiev, Galicia and all Ruthenia"[a] in the Ruthenian Uniate Church — a sui juris Eastern Catholic Church in full communion with the Holy See.

[2] Joseph Velyaminov-Rutski (father Feliks Velyaminov from Moscow and mother Bahumila Korsak) lived in Polish–Lithuanian Commonwealth, had Ruthenian origins and was noble and Calvinist.

Joseph's father Feliks Velyaminov belonged to the Rurik dynasty; he escaped Moscovy during the reign of Ivan the Terrible.

After the death of his father, his mother, who remained a Calvinist, opposed Rutski's desire to enter into religious life and stopped supporting his studies.

[4][5] In 1617, Metropolitan Rutski united a number of monasteries into the Congregation of the Holy Trinity of the Order of Saint Basil the Great.