Peg is a generally feminine nickname, usually a short form of Margaret or Peggy.

It may refer to:

People Women Peg Alexander, UK journalist, broadcaster, and former politician Peg Blitch (1934–2021), American politician and judge Peg Bracken (1918–2007), American author of humor books Peg Entwistle (1908–1932), British actress Peg Fenwick (1907–1987), American screenwriter and playwright Margaret Flory (born 1948), American politician Margaret Hughes (1630–1719), English actress often credited as the first professional actress on the English stage, mistress of Prince Rupert of the Rhine Peg Kehret (born 1936), American children's writer Peg LaCentra (c. 1910–1996), American contralto singer Peg Lautenschlager (1955–2018), American attorney and politician, first woman Attorney General of Wisconsin Peg Lynch (1916–2015), American writer, actress, and sitcom creator Peg Maltby (1899–1984), English-born Australian book illustrator and children's writer Peg Murray (1924–2020), American actress Peg O'Connor, American feminist philosopher Peg Phillips (1918–2002), American actress Peg Putt (born 1953), Australian politician and environmental advocate Peg Shreve (1927–2012), American politician Peg Taylor (cricketer) (1917–2004), New Zealand cricketer Peg Woffington (1720–1760), Irish actress and socialite Peg Yorkin (1927–2023), American feminist activist, philanthropist, and fundraiser

Men Sprague Cleghorn (1890–1956), Canadian ice hockey player William Duval (ice hockey) (1877–1905), Canadian ice hockey player

Fictional characters Peg Bundy, a main character in the American sitcom Married... with Children