List of St. Mark's School (Massachusetts) alumni

The following is a list of famous and notable former students of St. Mark's School of Southborough, Massachusetts.

A

 * Charles Francis Adams IV, businessman and philanthropist associated with Woods Hole Oceanographic Institute
 * Samuel A. Adams, '51, crusading CIA official who exposed bad Vietnam intelligence of Defense Department
 * Mark Albion, Harvard Business School Professor, 2010 National Entrepreneur of the Year (Social Entrepreneur)
 * Matthew Tobin Anderson '86, writer, winner of National Book Award
 * A. Watson Armour III, businessman and philanthropist

B

 * Charles L. Bartlett, 1956 winner of the Pulitzer Prize for National Reporting
 * Melsahn Basabe, basketball player
 * Walter Van Rensselaer Berry, lawyer, friend and mentor of Edith Wharton
 * Mike Birbiglia, comedian, class of 1996
 * Ben Bradlee, former editor, The Washington Post
 * Nicholas F. Brady, U.S. Treasury Secretary (1988–93); New Jersey Senator (1982)
 * Nicholas Braun, actor
 * John Leslie Breck, class of 1877, friend of Claude Monet who introduced Impressionism to the United States
 * Doug Brown, former National Hockey League player
 * Greg Brown, former National Hockey League player
 * Edward Burnett, U.S. representative from Massachusetts

C

 * Wayne Chatfield-Taylor, president of the Export-Import Bank, undersecretary of commerce
 * Gregory R. Ciottone, Harvard professor, White House consultant, President Emeritus of the World Association for Disaster and Emergency Medicine, Pioneering physician in Counter-Terrorism Medicine
 * Blair Clark, journalist, former general manager of CBS News
 * Nick Clements, theoretical linguist specializing in phonology, notably with CNRS in Paris
 * Ernest Amory Codman, pioneering surgeon who made contributions to a variety of specialties and the study of medical outcomes
 * William G. Congdon, representationalist painter who used abstract expressionism techniques
 * Harry Crosby, poet and founder of the Black Sun Press

D

 * J. Richardson Dilworth, former Yale trustee and benefactor of Yale University
 * Peter Hoyt Dominick, U.S. congressman, then senator for Colorado; US Ambassador to Switzerland

E

 * Kenward Elmslie, lyricist, librettist, and playwright

F

 * Hamilton Fish III, U.S. congressman from New York, 1920–1945; elected to College Football Hall of Fame
 * Hamilton Fish V, publisher, politician and philanthropist
 * Christopher Forbes, publisher, vice-chairman of Forbes Inc.
 * Peter Hood Ballantine Frelinghuysen, Jr., U.S. representative from New Jersey from 1953 to 1975
 * Rodney P. Frelinghuysen, U.S. representative from New Jersey

G

 * Stephen Galatti, visionary director general of the American Field Service and educational pioneer
 * David Gardner, founder of the Motley Fool
 * C. Boyden Gray, White House counsel to President George H. W. Bush; U.S. envoy to the European Union

H

 * Michael N. Hall, molecular biologist
 * Mason Hammond, Harvard University classicist and Harvard historian
 * Truxtun Hare, Olympic athlete; elected to College Football Hall of Fame
 * Prince Hashim Al Hussein of Jordan
 * Harry G. Haskell, Jr., U.S. representative from Delaware and former president of Abercrombie and Fitch
 * Ingolv Helland, portrait artist

I

 * John Jay Iselin, former president, The Cooper Union in New York City

J
Brooks Jones, Theater Director, Musician, Founder of the Pepsico Festival

K

 * Robert Winthrop Kean, U.S. representative from New Jersey from 1938 to 1959
 * Thomas Kean, former New Jersey governor; former chairman of the 9/11 Commission; former president of Drew University
 * John Marshall Kernochan, IPR pioneer; founder of Columbia Law School's Kernochan Center for Law, Media, and the Arts
 * William A. Knowlton, four-star general, former superintendent of West Point

L

 * Storm Large, musician; her father Henry spent 45 years teaching history and coaching football and baseball at the school before his retirement in 2010
 * Frederick Lippitt, Rhode Island lawyer, politician, public servant and philanthropist
 * Robert Lowell, poet

M

 * Robert McC. Marsh (1878–1958), American lawyer, politician, and judge
 * Samuel Mather, Ohio industrialist, philanthropist, and benefactor of Kenyon College
 * Lansing McVickar, career officer with the United States Army
 * Story Musgrave, astronaut

N

 * Dmitri Nabokov, son and translator of Vladimir Nabokov
 * Jordon Nardino, television writer
 * Eugene Nickerson, federal judge and Nassau County, New York politician
 * John H. Noseworthy, CEO and President of Mayo Clinic Health System

P

 * Robert William Packwood, Senator from Oregon 1969-1999
 * G. Willing "Wing" Pepper, Philadelphia businessman and philanthropist
 * Sheffield Phelps, Seattle philanthropist and arts patron
 * Joseph Pulitzer III, publisher
 * Ralph Pulitzer, publisher
 * George Putnam III '69, 1990 USA Today's investor of the year; trustee for The Putnam Companies

R

 * Franklin Delano Roosevelt III, economist
 * George Emlen Roosevelt, financier and philanthropist
 * William Donner Roosevelt, investment banker and philanthropist
 * Emily Rutherfurd, television actress

S

 * Stephen "Laddie" Sanford, international polo player.
 * John Sargent, former president and CEO of publisher Doubleday and Company
 * Eugene Lytton Scott, tennis player; member of International Tennis Hall of Fame, founder of the magazine Tennis Week
 * John Sculley, former president of PepsiCo and former CEO of Apple Computer
 * John W. Sears, Massachusetts Metropolitan District Commissioner
 * Mason Sears, member of the Massachusetts General Court, Chairman of the Massachusetts Republican Party, and United States Representative to United Nations Trusteeship Council
 * John Simpkins, Representative from Massachusetts, 1895–1898
 * Nik Stauskas, professional basketball player (Sacramento Kings), 2013 Big Ten Conference Men's Basketball Player of the Year
 * Chris Shepley, Hockey Player at Colby College and notable Hockey Referee.

T

 * Kaleb Tarczewski, basketball player
 * Robert H. Thayer, New York lawyer, diplomat, and intelligence officer
 * Sigourney Thayer, theatrical producer, World War I aviator and poet
 * Herbert Sears Tuckerman, former Massachusetts state representative and senator
 * Harrison Tweed, New York lawyer and bar association officer

V

 * Harold Stirling Vanderbilt, railroad executive, champion yachtsman and champion bridge player
 * William Kissam Vanderbilt II, railroad executive, industrialist, yachtsman, Fisher Island founder

W

 * James Wolcott Wadsworth Jr, New York senator from 1915 to 1927
 * T. Tileston Wells, Consul General for Romania in America
 * O.Z. Whitehead, well-known character actor
 * Karl Wiedergott, actor, best known for doing voices for The Simpsons; his father Fritz was the longtime athletic director at the school
 * Sean Wilsey (did not graduate), memoirist

Y

 * Scott Young, National Hockey League player, St. Louis Blues