Yitzhak Baer (Hebrew: יצחק בער; 20 December 1888 – 22 January 1980) was a German-Israeli historian and an expert on medieval Spanish Jewish history.

Baer was born in Halberstadt in the Prussian Province of Saxony, Germany, in 1888.

He emigrated to Mandatory Palestine, now Israel, in 1930, and began lecturing on medieval Jewish history at the Hebrew University of Jerusalem.

He was professor of medieval history at the University from 1932 to 1945.

This biographical article about an Israeli historian is a stub.