Mark L. Zieman (born January 14, 1945) was a Republican Iowa State Senator from Iowa. He was formerly part of the leadership of the Iowa Senate. He represented the largely rural 8th district, covering Allamakee, Winneshiek, Chickasaw and Howard counties in the northeastern corner of the state. He served in the Iowa Senate 2001–2009 and was a past co-chair of the Senate Ways and Means Committee.
Prior to his election to state office, he worked with various local government, Republican, and community organizations. His father was the previous state senator from his district.
Zieman was re-elected in 2004 with 15,682 votes (55%), defeating Democratic opponent John Beard. He was an unsuccessful candidate in the Iowa Senate elections, 2008.