Abba Avraham Shmuel Twersky (1872–1947), known as Shmuel Abba Twersky, was a Rebbe of the Makarover Hasidic dynasty. He succeeded his father as Makarover Rebbe of Berdichev, Ukraine, in 1920, and presided as Makarover Rebbe of Winnipeg, Manitoba, Canada, from 1927 to 1947.