Donald W. Koivisto (born August 18, 1949) is a Democratic politician from the U.S. state of Michigan.
[1] Koivisto was elected to the Michigan House of Representatives in 1980.
During his time there, he chaired the Agriculture Committee and helped write the state's right-to-farm act.
[2][3] In 1990, Koivisto was elected a Michigan State Senator from the 38th district, succeeding Joe Mack, who had represented much of the Upper Peninsula since 1960.
Koivisto served as state senator until 2003 when he was term-limited.