Ben-Zion Harel (Hebrew: בן-ציון הראל; 3 June 1892 – 19 September 1972) was an Israeli doctor and politician, who served as a member of the Knesset for the General Zionists between 1951 and 1959.

Born Ben-Zion Hirshowitz in Kuldīga in the Russian Empire (today in Latvia), Harel was educated at a heder and high school, before moving to Switzerland to attend university.

He established and served as director of the Jezreel Valley central hospital, and was the head doctor at Kupat Holim in the north of the country.

In 1935, he became chairman of the Land of Israel Physicians Association, and the following year helped establish Assuta hospital in Tel Aviv.

Following independence in 1948, he served as director general of the Ministry of Health until 1950, also helping to establish Elisha Hospital in Haifa.