Ovadia Yosef
Ovadia Yosef (Hebrew: עובדיה יוסף‎, romanized: Ovadya Yosef, Arabic: عبد الله يوسف, romanized: ‘Abd Allāh Yūsuf; September 24, 1920 – October 7, 2013) was an Iraqi-born Talmudic scholar, a posek, the Sephardi Chief Rabbi of Israel from 1973 to 1983, and a founder and long-time spiritual leader of Israel's ultra-Orthodox Shas party. Yosef's responsa were highly regarded within Haredi circles, particularly among Mizrahi communities, among whom he was regarded as "the most important living halakhic authority".