Yosef Shalom Elyashiv (born April 10, 1910) is a Haredi rabbi and posek (arbiter of Jewish law) who lives in Jerusalem, Israel.
At the age of 101, Elyashiv is active and remains the paramount leader of both Israel and the Diaspora Lithuanian-Haredi community, and many Ashkenazi Jews regard him as the posek ha-dor, the contemporary leading authority on halakha, or Jewish law.
