Israel Meir Kagan, Lithuanian-Polish rabbi and author (died 1933)

Yisrael Meir ha-Kohen Kagan was an influential Lithuanian Jewish rabbi, Halakhist, posek, and ethicist whose works continue to be widely influential in Orthodox Jewish life. He was known popularly as the Chofetz Chaim, after his book on lashon hara, and was also well known for the Mishna Berurah, his book on ritual law.