|Headmaster||John A. Nagl|
436 Upper School
225 Middle School
352 Junior Kindergarten, Kindergarten, and Lower School
|Average class size||16 students (Upper School)
17 Students (Lower and Middle School)
|Student to teacher ratio||8:1|
|Color(s)||Maroon and Gold|
|Average SAT scores (2009-13)||640 Math
630 Critical Reading
The Haverford School is a selective private, non-sectarian, all-boys college preparatory day school, junior kindergarten through grade twelve. Founded in 1884 as The Haverford College Grammar School, it is located in Haverford, Pennsylvania, nine miles northwest of Philadelphia, on Philadelphia's historic Main Line.
The school was founded in 1884 at the request of Alexander and Lois Cassatt as The Haverford College Grammar School. In 1903, the school became independent, changed its name, and moved to its current location across Railroad Avenue from the college.
The Haverford School is a member of the Inter Academic Athletic Association, the country's oldest inter-scholastic academic conference. Haverford fields 16 interscholastic sports. In the past decade, Haverford has won championships in water polo, cross-country, soccer, football, squash, ice hockey, lacrosse, baseball, tennis, crew, wrestling, and golf. In 2011, Haverford's varsity lacrosse team achieved a perfect 27–0 season, and were ranked No. 1 in the nation. The Fords have won the Heyward Cup (awarded each year to the Inter-Ac league school with the best overall record) 14 times, more than any other Inter-Ac school, including 1975–78, 1980, 1989, 1994, 2000, 2005, 2006, and for four out of five years in 2009, 2010, 2011 and 2013.
- W. D. Ehrhart - American poet, writer, scholar and Vietnam veteran. Ehrhart has been called "the dean of Vietnam war poetry." Donald Anderson, editor of War, Literature & the Arts, said Ehrhart’s Vietnam-Perkasie: A Combat Marine Memoir, is “the best single, unadorned, gut-felt telling of one American’s route into and out of America’s longest war.” Ehrhart has been an active member of Vietnam Veterans Against the War (VVAW). He was a 1993 Pew Fellow in the Arts.
- Bert Bell 1914 – NFL commissioner
- Jennifer Finney Boylan 1976 - prominent transgender author and activist.
- Maj. Gen. Smedley Darlington Butler 1898 – two-time Medal of Honor recipient; Major General in the U.S. Marine Corps; Director of Public Safety in Philadelphia; political speaker and author; nicknamed "The Fighting Quaker."
- Britton Chance 1931 – Olympic gold medalist in sailing and University of Pennsylvania professor of Biochemistry, Biophysics, Physical Chemistry and Radiological Physics
- Robert Clarkson Clothier (1885–1970), Class of 1903, Wall Street Journal reporter, WWI Army officer, representative for Secretary of War, Haverford School headmaster, 14th president of Rutgers University (1932-1951), and president of the New Jersey Constitutional Convention (1947)
- John DiIulio 1976 – political science professor at the University of Pennsylvania and first director of the Office of Faith Based Initiatives initiated by President George W. Bush
- John duPont – an American and member of the prominent Du Pont family who was convicted of murder in the third degree. He was also known as an ornithologist, philatelist, philanthropist, coach, and sports enthusiast.
- Oscar Goodman 1957 – Mayor of Las Vegas, Nevada
- John Hickenlooper 1970 – Mayor of Denver and Governor of Colorado
- Al Hunt 1960 – managing editor of Bloomberg News
- James Lavino 1991 – composer
- W. Thacher Longstreth 1937 – former Philadelphia, PA City Councilman
- James Rogers McConnell 1908 – military aviator who served as one of the founding seven members of the Lafayette Escadrille in the French Air Service in World War I; honored by the Aviator statue at the University of Virginia and France's Croix de Guerre
- Mike Mayock 1976 – former NFL Player and NFL Analyst
- Peter Morris (playwright) 1991 – playwright, author of Guardians (play)
- Maxfield Parrish 1898 – painter and illustrator
- Ronald Perelman 1960 – billionaire; controlling owner of MacAndrews & Forbes and Revlon
- Steve Sabol 1960 – President of NFL Films
- Jeremiah White 2000 – professional soccer player
- Charles Sumner Crosman, 1884–1912
- Edwin Mood Wilson, 1912–1937
- Cornelius B. Boocock, 1937–1942
- Leslie R. Severinghaus, 1942–1965
- Kenneth Kingham, 1965-1966
- Davis R. Parker, 1966–1987
- William Boulton Dixon, 1987–1992
- Joseph P. Healey, 1992–1998
- Joseph T. Cox, 1998–2013
- John A. Nagl, 2013
- The Handbook of Private Schools (93rd ed.). Porter Sargent Handbooks. 2012. p. 528.
- "Professor Jennifer Finney Boylan (Maine) (May 2011 – Present)". GLAAD. Retrieved 2014-11-24.
- Frusciano, Thomas J. (University Archivist). Rutgers Leaders, Rutgers History: Robert C. Clothier - Rutgers President, 1932 to 1951, originally published in "Leadership on the Banks: Rutgers' Presidents, 1766–2004", Journal of the Rutgers University Libraries. Retrieved 29 August 2013.
- Staff. "Dr. R. C. Clothier, Ex-Rutgers Head; University President from 1932-51, Dies at 85" in The New York Times (20 March 1970).
- "Decorated Army vet named new headmaster at Haverford School - Philly.com". Articles.philly.com. 2012-09-03. Retrieved 2013-09-02.