John William Jensen (March 28, 1926 – October 26, 2012) was an American politician.
He was born in York, Nebraska, on March 28, 1926, to parents Mathias and Bessie Jensen.
Upon graduating from Dike High School in 1944, John joined the United States Marines and was deployed to the South Pacific in the waning days of World War II.
Jensen married Myrtle L. Shipp on May 29, 1948, and they jointly operated a farm near Plainfield, Iowa, for six decades.
During his legislative tenure, Jensen took an interest in the restoration, conservation, and preservation of the Iowa State Capitol.