Lynda Rosen Obst (born April 14, 1950) is a feature film producer. She was born in New York and is a graduate of Pomona College in Claremont, CA. She worked as an editor at The New York Times before moving to Los Angeles with her then-husband David Obst. Starting at The Geffen Film Company as a "d-girl", her first major project was developing the scripts that would eventually become Flashdance.
She partnered with Debra Hill in 1986. The partnership would go on to produce Adventures in Babysitting, Heartbreak Hotel and The Fisher King, among other projects.