In the United States:

United States (essays) summary and related information.

In Haiti:

In New Zealand:

Charles Sumner (1811-1874), American politician

William Graham Sumner (1840-1910), American sociologist

Gordon Sumner (born 1951), the British musician Sting

Sumner Redstone (or Sumner Murray Rothstein, born 1923), Chairman of Viacom

Avenue Charles Sumner, in the capital city, Port-au-Prince

James B. Sumner (1887-1955), American biochemist

Sumner Welles, (1892-1961), U. S. Undersecretary of State

Sumner County, Kansas

Edwin Vose Sumner (1797-1863), American soldier

Sumner Chilton Powell, winner of the Pulitzer Prize for History in 1964

George Heywood Maunoir Sumner (Heywood Sumner, 1853-1940), English artist, designer, writer and archaeologist

Sumner Township, Minnesota

J. D. Sumner (1924-1998), American singer and songwriter

USS Sumner (AGS-5), survey ship

Sumner County, Tennessee

Robert Sumner (born 1922), American evangelist & writer

USS Sumner (DD-333), Clemson-class destroyer

Bernard Sumner (born 1956), British musician

Fort Sumner, New Mexico

Sumner, Washington

Mary Sumner (1828–1921), founder of the Mothers' Union

Sumner, Mississippi

John Bird Sumner (1780-1862), British religious leader

Sumner, Iowa

Sumner, Missouri

Sumner, Michigan

Sumner Township, Michigan

Sumner, Barron County, Wisconsin

L. W. Sumner, Canadian philosopher

Sumner, Jefferson County, Wisconsin

William H. Sumner (1780-?), Boston historical figure

Sumner, Illinois

Increase Sumner (1746-1799), American politician and jurist

Lake Sumner, New Mexico

Sumner, Nebraska

Sumner, Maine

Sumner, Trempealeau County, Wisconsin

Sumner, Georgia

Allen Melancthon Sumner (1882-1918), American marine soldier

Sumner (crater), a crater on the moon

Brian Sumner (born 1979), British skateboarder

Thomas Hubbard Sumner (1807-1876), American mariner

The Sumner method, a way of finding a ship's location at sea; William Thomson (Lord Kelvin) calculated a set of tables for its ready application

Samuel S. Sumner (1842-1937), American general

Charles Richard Sumner (1790-1874), British religious leader

Sumner Paine, 1896 Olympic shooting gold and silver medalist

The Sumner Tunnel, a vehicular tunnel in Boston, Massachusetts

Steve Sumner (fl. 1980s), New Zealand football player

Cid Ricketts Sumner (1890-1970), American novelist

Joe Sumner (born 1976), British musician

Jethro Sumner, American Revolutionary War general

Joseph Burton Sumner (1837-1920), American settler

USS Sumner, a number of U.S. Navy ships, including

Sumner Elementary School, in Topeka, Kansas

Lake Sumner

John Sumner (1936-2004), British mountaineer

Viscount Sumner

Kelly Sumner, British businessman

Claude Sumner, Canadian/Ethiopian philosopher

Timothy Sumner, British astronomer

Jake Sumner (born 1985), British model

Sumner, New Zealand, a seaside suburb of Christchurch, New Zealand

SS Charles Sumner, a World War II Liberty ship

USS Allen M. Sumner (DD-692), destroyer, namesake of class (see Allen M. Sumner class destroyer)