Ruth Guerri (born February 12, 1958 in St. Louis, Missouri) is an American model and actress of Italian descent. She was Playboy magazine's Playmate of the Month for its July 1983 issue. Her centerfold was photographed by Arny Freytag and Stephen Wayda.
Ruth was working as a model in her home town, primarily for Anheuser-Busch, at the time she became a Playmate. According to the 1996 edition of The Playmate Book, she was still living in Missouri with her husband, Tom, and two daughters, Elsie and Ursi, in a log cabin, and also owned an antique store.