List of Famous people born in Pennsylvania, United States of America

Adam Jacoby Slemmer was an officer in the United States Army during the Seminole Wars and the American Civil War, as well as in the Old West.

Silas Weir Mitchell is an American character actor. He is known for starring as Charles "Haywire" Patoshik in the Fox television series Prison Break (2005–2007) and as Monroe in the NBC television series Grimm (2011–2017).

Thomas Sovereign Gates Jr. was an American politician and diplomat who served as Secretary of Defense from 1959 to 1961 and Secretary of the Navy from 1957 to 1959, both under President Dwight D. Eisenhower. During his tenure as Secretary of Defense, he established a task force to set nuclear target priorities. He also authorized U-2 reconnaissance flights, including the flight of Francis Gary Powers.

Gerald William Meals is a Major League Baseball umpire. Meals has been a full-time MLB umpire since 1998 after serving as an MLB reserve umpire from 1992 to 1997. He worked in the 2008 NLCS between Philadelphia and Los Angeles and the All-Star Game in 2002 and 2015. He has also worked in nine Division Series and the 2009 World Baseball Classic.

Marvin H. Albert was an American writer of mystery, crime and adventure novels including ones featuring Pete Sawyer, a French-American private investigator living and working in France.

Thomas Horsfield M.D. was an American physician and naturalist who worked extensively in Indonesia, describing numerous species of plants and animals from the region. He was later a curator of the East India Company Museum in London.

Elliot Griffin Thomas was an African-American Catholic prelate who served as the Bishop of the Diocese of Saint Thomas.

Eusebius Joseph Beltran is an American prelate. He served as Archbishop of the Archdiocese of Oklahoma City, Oklahoma from 1993 until 2010, and is now archbishop emeritus. Prior to his appointment to Oklahoma City, Beltran was bishop of the Diocese of Tulsa, Oklahoma from 1978 to 1992.

Eric Red is an American screenwriter and director, best known for writing the horror films The Hitcher and Near Dark, as well as writing and directing Cohen and Tate.