Marcel L. Groen (Born November 2, 1945) is an American lawyer and the former chairman of the Pennsylvania Democratic Party from 2015 until his resignation on February 2, 2018.
Groen graduated from Walnut Hills High School, Cincinnati, Ohio, in 1963.
Groen was a partner at Fox Rothschild LLP working out of the Montgomery County, Pennsylvania office.
In 2017 and 2018, Groen came under fire for his alleged failure to respond to calls to address what female party leaders and local activists have characterized as a culture of sexual predation within the party.
Critics cite Groen's silence on sexual misconduct allegations against prominent state politicians, his failure to fulfill a commitment to create a party sexual misconduct policy after the alleged sexual assault of a state party delegate at the 2016 DNC, and his anger over calls to dismiss a close aide's controversial statements about the #MeToo movement as evidence of Groen's unwillingness to address sexual misconduct within the party.