Early life
The son of Yehuda Arieh Klausner and Fania Musman, Amos Klausner was born on May 4, 1939 in Jerusalem, then part of the British Mandate of Palestine. His father was born in Odessa and raised in Vilnius, while his mother came from Rovno, Ukraine. Oz attended Gymnasia Rehavia and later studied at the Hebrew University of Jerusalem.