A self-description of individuals without romantic partners, particularly applied to women in their thirties introduced in the novel and film Bridget Jones's Diary

A person that is not a twin or other multiple birth

John Singleton (born 1968), American film director, producer, and screenwriter

Singleton pattern, a design pattern used in software engineering

Singleton, a short story by Greg Egan

Benjamin "Pap" Singleton (1809-1892), African American separatist leader

Singleton, New South Wales, Australia

A character encoded with one unit in variable-width encoding schemes for computer character sets

Chris Singleton (born 1977), Irish musician

Walter K. Singleton (1944-1967), Medal of Honor recipient

Valerie Singleton (born 1937), British television and radio presenter

Henry Singleton, inventor of the gyroscope

Penny Singleton (1908–2003), American actress

Ken Singleton (born 1947), sports commentator, former professional baseball player

William Dean Singleton, founder and CEO of MediaNews Group

Charles Laverne Singleton (1959-2004), executed inmate

Sandy Singleton (1914-1999), English cricketer

Singleton (mathematics), a set with exactly one element in mathematics

Al Singleton (born 1975), American football linebacker

John Singleton (Australian entrepreneur) (born 1942)

Sasha Singleton (born 1978), American model and dancer

Chris Singleton (baseball player) (born 1972), American baseball player

James Singleton (basketball) (born 1981), American professional basketball player

Zutty Singleton (1898-1975), American jazz drummer

Singleton, Kent, United Kingdom

Singleton, West Sussex, United Kingdom

Roger Singleton-Turner, British television director

Michael Singleton (1913–2002), English cricketer

Chris Singleton (American football) (born 1967), American football player

Billy Singleton (born 1968), British basketball player

Kenneth Singleton, American economist

Singleton bound, used in coding theory

Lawrence Singleton (1927-2001), American criminal

Alvin Singleton (born 1940), American composer

Alex Singleton (born 1979), President of the Globalisation Institute

Dave Singleton, American writer

Singleton, Western Australia, Australia

Singleton field, used in conformal field theory

Singleton, Lancashire, United Kingdom

An empty tag or self-closing tag in XHTML or XML coding