Jakiv Ivan Susha (Belarusian: Якуб Ян Суша, Ukrainian: Яків Іван Суша, Polish: Jakub Jan Susz) - (1610 in Minsk – 4 March 1687 in Kholm) was the Bishop of Chełm–Belz in the Ruthenian Uniate Church from 1652 to 1687.

After several postings he was brought to Kholm as a lecturer at the gymnasium and assistant to Bishop Metodii Terletskyi.

[1] In the wake of Hetman Bohdan Khmelnytsky’s uprising, Susha proved to be an exceptional diplomat.

He negotiated with Cossack leaders, and in 1664–1666 he lived in Rome as delegate of the Uniate church to the papacy.

There he persuaded the pope to name a new Uniate metropolitan of Kyiv, healed a serious rift in the Basilian order, and obtained an agreement prohibiting Catholics from changing their rite.