Rabbi Yitzchok Tuvia Weiss (26 August 1926 – 29 July 2022) was the Chief Rabbi, or Gaavad (Gaon Av Beis Din), of Jerusalem for the Edah HaChareidis. He was appointed to this post in 2004, after having served as a dayan of the Machzike Hadass community of Antwerp, Belgium. Rabbi Weiss was a British national. According to his late brother, he was born in Pezinok, Slovakia as Tibor Weiss to Salomon (Shlomo) Weiss, a timber merchant. He attended the local secular school in the mornings, and took religious instruction with a private melamed in the afternoons.