Meshulam Eliezer Leifer

Meshulam Eliezer Leifer (; born January 23, 1979) is the fourth Rebbe of the Pittsburgh Hasidic dynasty. He succeeded his father, Grand Rabbi Mordechai Yissachar Ber Leifer, upon the latter's death in October 2020.

Early life, family, and education Meshulam Eliezer Leifer was born on January 23, 1979, in the United States. He is the eldest of the three sons of the third Pittsburgher Rebbe, Grand Rabbi Mordechai Yissachar Ber Leifer, and his wife Miriam Aviva Leifer (née Liebes). He has five sisters. His paternal great-grandfather, Grand Rabbi Yosef Leifer, established the Pittsburgh Hasidic dynasty in Pittsburgh, Pennsylvania, in the late 1920s, and his grandfather, Grand Rabbi Avraham Abba Leifer, moved the Hasidut to Ashdod, Israel, in 1970.

His family immigrated to Israel in the early 1980s. They first lived in Telzstone, where Leifer attended a Talmud Torah. and also has followers in Jerusalem, Bnei Brak, Beit Hilkia, New York City, and California. In the 2010s, Leifer began working with young men who were weak in their faith, strengthening them and drawing them closer to Torah and Hasidut.

Leifer is considered a significant scholar of Torah and Hasidut, and is versed in mussar works as well. He has authored several books on Hasidut and the history of spiritual leaders throughout the generations. He also edited and proofread his father's writings before their publication.

As Rebbe Leifer was appointed to succeed his father as Pittsburger Rebbe at the latter's funeral on October 5, 2020.

Personal life Leifer is currently married to the daughter of the Kretshnif–Jerusalem Rebbe. His eldest son (from a previous marriage), Rabbi Yekusiel Yehudah Leifer, is the son-in-law of the Spinka Rebbe of Monsey, New York.