Mary Lou E. Van Dreel (née Ambrosius; born March 23, 1935) was a member of the Wisconsin State Assembly. She graduated from Nicolet High School in De Pere, Wisconsin, as well as the University of WisconsinâÂÂStevens Point and the University of WisconsinâÂÂOshkosh. Van Dreel is married with three children.
Van Dreel was first elected to the Assembly in 1986. Additionally, she was a member of the Ashwaubenon Village Board from 1977 to 1987. She is a Democrat.