Rabbi Chaim Walkin (born 1945) is a Haredi Rabbi and a Mashgiach ruchani. He currently serves as the [[Mashgiach ruchani]] of the Ateret Yisrael Yeshiva in Jerusalem, and previously served as the Mashgiach ruchani of Or Yisrael Yeshiva. He is the grandson of Rabbi Aharon Walkin, among the great poskim of Europe prior to World War Two, and the son of Rabbi Shmuel David Walkin.