South Milwaukee High School, "Home of the Rockets," is a high school located in the city of South Milwaukee, Wisconsin, United States, a suburb of Milwaukee.

Approximately 1,000 students attend the high school.

A variety of sports and activities are offered at South Milwaukee High School.

The athletic teams compete in the Woodland Conference of the WIAA.

SMHS won state championships in boys' cross country in 1937, 1938, 1939, 1940, 1941, 1949, 1950, 1951, 1952 and 1965.