Linda Carroll (born Linda Anne Risi; April 7, 1944) is an American author, marriage counselor, and family therapist. Carroll received national attention in 1993 when one of her patients, the fugitive Katherine Ann Power, turned herself in to authorities after spending twenty-three years eluding police. Carroll is best known professionally as a couples therapist, and as an author of three books, the latest being Love Cycles: The Five Essential Stages of Lasting Love, in 2014.