Yehuda Oz, originally known as Yehuda Klausner, was an Israeli librarian born in 1904 in Odessa (then part of the Russian Empire, present-day Ukraine). He immigrated to Mandatory Palestine in the 1920s, settled in Jerusalem, and worked at the Jewish National and University Library. He married Fania Mussman in 1937, and their son, the acclaimed author Amos Oz (born Amos Klausner), was born in 1939. Yehuda is renowned primarily as the father of Amos Oz, and his passion for books and knowledge profoundly influenced his son's early love of literature, shaping Amos's path as one of Israel's most celebrated writers. As a member of the educated Jewish middle class, Yehuda was involved in cultural and intellectual Zionist circles. He passed away in 1988 in Jerusalem, leaving a legacy tied to his familial influence on Israeli literature.