Jennifer Lafleur is an American actress. She is known for appearing in the independent films The Do-Deca-Pentathlon (2012), The Pretty One (2013), The Midnight Swim (2014), MAD (2016) and 6 Years (2015). On television, Lafleur has appeared on the HBO series Big Little Lies, Room 104 and Animals., the Showtime series Billions, American Crime on ABC, Married on FX, Chicago Fire on NBC, Workaholics and Review on Comedy Central, Childrens Hospital and Newsreaders on Adult Swim, and Major Crimes on TNT.

Personal life
Lafleur was born in Ware, Massachusetts and grew up in Brookfield. Her father is an emergency room physician, and her mother is a firefighter, paramedic, and commands the local emergency ambulance service. Lafleur worked as an EMT for seven years throughout college and graduate school. She graduated summa cum laude from Westfield State University. She went on to receive her Master of Fine Arts in acting from Brandeis University. She most likely is of French or French-Canadian ancestry.

On April 30, 2016, Lafleur married actor and director Ross Partridge, after dating for ten years.

On May 18, 2019, Jennifer delivered the commencement address at Westfield State University.