Margaret Ann "Peggy" Krusick (born October 26, 1956) is a retired American Democratic politician from Milwaukee, Wisconsin.

She was a member of the Wisconsin State Assembly for nearly thirty years (1983–2013), representing southwest wards of the city of Milwaukee and neighboring areas.

She lost her seat to a primary challenge from Daniel Riemer in the 2012 assembly elections due to her stances on certain issues.

She went on to attend college at the University of Wisconsin–Milwaukee, where she earned her bachelor's degree in political science in 1978, with a certificate in law studies.

The district contained much of her original territory in southwest Milwaukee, but stretched further to the south and west, adding several wards of suburban Greenfield, Wisconsin.

Significantly, she was one of three Democrats who, in 2009, prevented the Legislature from repealing an 1849 law which was read at the time as a full ban on abortion.

Krusick faced political newcomer, law student Daniel Riemer, whose father had previously been a high-ranking staffer in the administration of Wisconsin Governor Jim Doyle and ran unsuccessfully for Milwaukee County executive in 2004.

[29] For her past anti-abortion positions, Krusick won an endorsement from Wisconsin Right to Life, which may not have helped in a Democratic primary.

[30] On the other side of that issue, a Wisconsin pro-choice PAC targeted anti-abortion Democrats to assist their primary challengers.

[32] After losing the primary, Krusick attempted a write-in campaign for the general election, emphasizing her record as an effective independent.