הרב יצחק טוביה וייס היה גאב"ד העדה החרדית בירושלים וראש ישיבת חכמת התורה במודיעין עילית.
Rabbi Yitzchok Tuvia Weiss was the Chief Rabbi and Grand Patriarch, or Ga'avad, 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.
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