Yeshiva Rabbi Chaim Berlin or Yeshivas Rabbeinu Chaim Berlin is an American Haredi Lithuanian-type boys' and men's yeshiva in Brooklyn, New York.

Litvaks or Lita'im are Jews with roots in the territory of the former Grand Duchy of Lithuania. The term is sometimes used to cover all Haredi Jews who follow an Ashkenazi, non-Hasidic style of life and learning, whatever their ethnic background. The area where Litvaks lived is referred to in Yiddish as ליטע‎ Lite, hence the Hebrew term Lita'im.