Itzhak Shum (Hebrew: יצחק שום; born 1 September 1948 in Kishinev, Moldavian SSR) is a retired Israeli football player and manager, and currently the owner of Hapoel Kfar Saba.

He played 78 times and scored 10 goals for Israel national football team and was a participant at the 1970 FIFA World Cup and the 1968 and 1976 Olympic Games.

In the 2002–03 season Shum made history by leading Maccabi Haifa to become the first Israeli team to qualify for the group phase of the UEFA Champions League.

Shum was most recently the manager of Israeli side Hapoel Tel Aviv, after he replaced Dror Kashtan.

He led Hapoel into the Knockout stage of the 2006–07 UEFA Cup after beating Ukrainian side Chornomorets Odesa 4–1 on aggregate in the first round, and progressing in 2nd place from their group.