Yitzchok Tuvia Weiss

Rabbi Yitzchok Tuvia Weiss (; 26 August 1926 – 30 July 2022) was the Chief Rabbi and Grand Patriarch, or Ga'avad (Gaon Av Beis Din), of Jerusalem for the Edah HaChareidis. He was appointed to this post in 2003, after having served as a dayan, or Rabbinical Judge, of the Machzike Hadass community of Antwerp, Belgium. Weiss was a British national.

According to his brother, he was born in Pezinok, Slovakia as Tibor Weiss a timber merchant. He attended the local secular school in the mornings, and took religious instruction with a private melamed in the afternoons.

Before World War II, at the age of 12, he escaped Slovakia on a Kindertransport, arranged by Aron Grünhut

Weiss died on 30 July 2022, at the age of 95.