Quinn Louise Cummings (born August 13, 1967) is an American retired child actress, now writer and entrepreneur. She is possibly best known for her role of Lucy McFadden in Neil Simon's The Goodbye Girl, and for her recurring role as Annie Cooper on the television series Family.

She has written a memoir Notes From The Underwire. Her second book, The Year of Learning Dangerously, about homeschooling in America, was released in August, 2012. In 2013, Cummings published Pet Sounds, a collection of essays relating to living with animals.