Edwin Martin Schaefer (May 14, 1887 – November 8, 1950) was a U.S. Representative from Illinois.

Edwin M. Schaefer
Member of the U.S. House of Representatives from Illinois's 22nd district
In office March 4, 1933 – January 3, 1943
Preceded by	Charles A. Karch
Succeeded by	Calvin D. Johnson
Personal details
Born	(1887-05-14)May 14, 1887 Belleville, Illinois, U.S.
Died	November 8, 1950(1950-11-08) (aged 63) St. Louis, Missouri, U.S.
Political party	Democratic

Born in Belleville, St. Clair County, Illinois, Schaefer attended the public schools, Western Military Academy, Alton, Illinois, and the University of Illinois. He graduated from Washington University in St. Louis, Missouri, in 1910. Chemical engineer with Morris & Co., packers, East St. Louis, Illinois from 1913 to 1916, assistant general superintendent 1916–1918, and general superintendent 1919–1928. He served as assistant recorder of deeds of St. Clair County, Illinois from 1928 to 1930. He was the county treasurer of St. Clair County, Illinois from 1930 to 1932. He served as delegate to the Democratic State conventions in 1928, 1932, and 1936.

Schaefer was elected as a Democrat to the Seventy-third and to the four succeeding Congresses (March 4, 1933 – January 3, 1943). He was not a candidate for renomination in 1942. He served as member of the board of directors of Griesediech-Western Brewery Co., Belleville, Illinois, at the time of his death. He died in St. Louis, Missouri, November 8, 1950. He was interred in Walnut Hill Cemetery, Belleville, Illinois.