Marie Newman (née Klassen; born April 13, 1964) is an American politician and marketing consultant who served as the U.S. representative from Illinois's 3rd congressional district from 2021 to 2023. The district encompassed parts of southwestern Chicago as well as many of its nearby suburbs, such as Oak Lawn, Western Springs, and Lockport. Newman was elected to the United States House of Representatives as the Democratic nominee, after defeating incumbent Dan Lipinski in the 2020 primary election. Due to redistricting as a result of the 2020 United States Census, Newman in 2022 faced a choice between running in the heavily Hispanic 4th district which she had been drawn into, or against Sean Casten in a district with the majority of her former area. Newman opted to run against Casten in the Democratic primary but was defeated. In April 2023, Newman was appointed chief executive officer of Little City Foundation, a social services organization serving people with intellectual and developmental disabilities.