List of Famous people born in July

Jeffrey M. Friedman is a molecular geneticist at New York City's Rockefeller University and an Investigator of the Howard Hughes Medical Institute. His discovery of the hormone leptin and its role in regulating body weight has had a major role in the area of human obesity. Friedman is a physician scientist studying the genetic mechanisms that regulate body weight. His research on various aspects of obesity received national attention in late 1994, when it was announced that he and his colleagues had isolated the mouse ob gene and its human homologue. They subsequently found that injections of the encoded protein, leptin, decreases body weight of mice by reducing food intake and increasing energy expenditure. Current research is aimed at understanding the genetic basis of obesity in human and the mechanisms by which leptin transmits its weight-reducing signal.

Jostein Wilmann is a Norwegian former professional road racing cyclist. His best performance came in the Tour de France of 1980, where he finished 14th overall. This is still the best result any Norwegian cyclist has achieved in the Tour de France general classification. He is also the only Norwegian cyclist to win the Tour de Romandie and the Setmana Catalana de Ciclisme, taking both victories in 1982. He is the father of racing cyclist Frederik Wilmann.

Andrew Michael Odlyzko is a Polish-American mathematician and a former head of the University of Minnesota's Digital Technology Center and of the Minnesota Supercomputing Institute. He began his career in 1975 at Bell Telephone Laboratories, where he stayed for 26 years before joining the University of Minnesota in 2001.

Rick Polizzi is an American television producer and author. He is the creator of the book Spin Again, animation producer on the successful television series The Simpsons, and creator of Los Angeles based Halloween haunt Boney Island.