List of Famous people named Jeffrey

Jeffrey Marc Monforton is the bishop of the Diocese of Steubenville in the US state of Ohio. He was named the fifth bishop of the Diocese of Steubenville on July 3, 2012.

Jeffrey Garcia is an American stand-up comedian, actor and voice actor, who is best known for voicing Sheen Estevez in Jimmy Neutron: Boy Genius, and its two Nickelodeon spin-off television show series The Adventures of Jimmy Neutron: Boy Genius and Planet Sheen, as well as Pip the Mouse in Barnyard and its spin-off television show series Back at the Barnyard.

Jeffrey Nels Williams is a retired United States Army officer and a NASA astronaut. He is a veteran of four space flights and formerly held the American record for most days spent in space, which was surpassed in April 2017 by his colleague Peggy Whitson. He still holds the record of the longest time in space for an American man.

Jeffrey William Titford is a British politician who served as leader of the UK Independence Party (UKIP) from 2000 until 2002. He served again as interim leader in September to November 2010, following the resignation of Lord Pearson of Rannoch. He was also a Member of the European Parliament (MEP) for the East of England from 1999 to 2009.

Jeffrey Goldstone is a British theoretical physicist and an emeritus physics faculty member at the MIT Center for Theoretical Physics.

Jeffrey Hollender is an American entrepreneur, author and activist.

Jeffrey Shears Ashby is an American mechanical engineer, and former naval officer and aviator, test pilot and NASA astronaut, a veteran of three Space Shuttle missions. He is a retired Captain in the U.S. Navy. He currently works for Blue Origin as chief of mission assurance.

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.

Jeffrey Lieber is an American screenwriter for both television and film. He is credited as a co-creator of the television series Lost. In addition to writing for television and film, Lieber also blogs at the website dailykos. His blog posts, which appear as "diaries" rather than front-page posts, typically have a satirical take on the news.