Rabbi Chaim Yehuda Krinsky grew up in Dorchester, Massachusetts and received rabbinical ordination at the Central Lubavitch Yeshiva in Brooklyn, NY. He went on to serve as the secretary to the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson. Rabbi Krinsky was the sole executer of the Rebbe's will.
Today, Rabbi Krinsky serves as Chairman of Merkos L’Inyonei Chinuch and Machne Israel, the educational and social service arms of the Lubavitch movement, secretary of the umbrella organization, Agudas Chasidei Chabad and the director of the Kehot Publication Society. These organizations were set up by the Rebbe to direct the activities of Chabad Lubavitch. Rabbi Krinsky is the spokesperson and the face of the Chabad Lubavitch movement.
In 2010, Rabbi Krinsky was voted the most influential Rabbi in America by Newsweek.