Joseph LoPiccolo (born 1943) is an American psychologist and sex researcher who focuses on female sexual response. He coauthored the self-help book Becoming Orgasmic with Julia Heiman and served on the Subcommittee on Sexual Dysfunctions for the DSM-III-R. He is Professor Emeritus of Psychological Sciences at the University of Missouri in Columbia, Missouri, where previously served as Chair of the department.