Mary Isaacson

Mary-Louise Isaacson (born November 15, 1970) is a Democratic member of the Pennsylvania House of Representatives. She has represented the 175th district since 2019.

Isaacson earned a bachelor's degree in Political Science from State University of New York at Oneonta, and an A.S. in Early Childhood Education from State University of New York at Farmingdale. She served as a coordinator of zoning and land practice at a Philadelphia law firm. Isaacson was a member of the Democratic State Committee for 14 years. She served as chief of staff to representative Michael H. O'Brien for 12 years. Isaacson was chosen as the Democratic nominee for O'Brien's seat by Philadelphia ward leaders after O'Brien withdrew from the race in July 2018. In November 2018, she was elected state representative for the 175th district. She crafted a bill that would offer state tax credits of up to $2,500 per individual for interest paid on student loans for individuals earning up to $75,000 and couples making up to $155,000.

She is married to Chris and two children, Sophia and Oscar. The family lives in the Northern Liberties neighborhood of Philadelphia.