Reuven Pinchas Bulka CM (Hebrew: ראובן פנחס בולקא; June 6, 1944 – June 27, 2021) was a Canadian rabbi, writer, broadcaster, and activist. He was the spiritual leader of Congregation Machzikei Hadas in Ottawa from 1967, first as Rabbi and then as Rabbi Emeritus, and served as co-president of the Canadian Jewish Congress from 2007 to 2009. Bulka's work with Kind Canada led to recognition the third week of February in each and every year as "Kindness Week" in Canada.