Ken Otremba (October 29, 1948 – September 4, 1997) was an American politician and a member of the Minnesota House of Representatives representing District 11B, which includes portions of Douglas and Todd counties in the west central part of the state. A Democrat, Otremba was elected to two terms in office, dying of liver cancer during the second.
Otremba served as a radar technician in the United States Navy during the Vietnam War, and later served in government, serving as an officer for the township of Reynolds, and as a commissioner for Todd County.
Otremba, a farmer, was married to Mary Ellen Otremba, who succeeded him in office. The two had four children. His cousin was Steve Dehler who also served in the Minnesota Legislature.