Lisanne Falk (born c. 1965) is an American actress and film producer.
She played the role of Heather McNamara in the black comedy film Heathers (1988) alongside Winona Ryder. Falk is also a former child model who worked at the Ford Modeling Agency with a young Brooke Shields. Falk also portrays the seemingly upset young woman in a men's restroom on the cover of the Foreigner album Head Games. Her modeling work was featured in the book Lisanne: A Young Model.