Robert Kingman Goodwin (May 23, 1905 – February 21, 1983) was a Republican U.S. Representative from Iowa from a March 1940 special election until the end of his term in January 1941. Born in Des Moines, Iowa, Goodwin attended the public schools.He graduated from Drake University, Des Moines, Iowa, in 1928 and later attended the law school of George Washington University, Washington, D.C.He moved to Redfield, Iowa, in 1929 and engaged in the brick and tile manufacturing business and farming from 1934 to 1949.He served as mayor of Redfield, Iowa from 1938 to 1940.He was also a delegate to the Republican State conventions in 1936 and 1938, and vice president of the Dallas County Farm Bureau in 1939 and 1940.