Eduardo Frei may refer to either of two Chilean politicians:

Eduardo Frei Montalva (1911–1982), president of Chile from 1964 to 1970 Eduardo Frei Ruiz-Tagle (born 1942), president of Chile from 1994 to 2000, son of the above

See also Frei (surname) Base Presidente Eduardo Frei Montalva, an Antarctic base of Chile