Edwin Reichley Hicklin (March 1, 1895 – September 19, 1963) was a United States federal judge in Iowa in the late 1950s and early 1960s.
Born in Wapello, Iowa, Hicklin received an A.B. from Drake University in 1915 and an LL.B. from the University of Iowa in 1917. He was in private practice in southeastern Iowa from 1918 to 1957. He was a County Attorney of Louisa County, Iowa from 1920 to 1924. He was an Iowa state senator from 1930 to 1934, and an unsuccessful Republican candidate for U.S. House of Representatives from Iowa's 1st congressional district in 1934, losing to New Deal Democrat Edward C. Eicher. He served in the U.S. Army during World War I and World War II.
Hicklin was nominated by President Dwight D. Eisenhower on July 16, 1957, to a seat in the United States District Court for the Southern District of Iowa vacated by the death of William F. Riley. He was confirmed by the United States Senate on August 15, 1957, and received his commission on August 16, 1957. He assumed senior status on January 27, 1960. Hicklin served in that capacity until his death on September 19, 1963.