De Boer is a Dutch occupational surname meaning "the farmer ". Variant spellings include den Boer and DeBoer. Notable people with this surname include:

Yentl en de Boer is a Dutch cabaret and musical duo, consisting of Yentl Schieman and Christine de Boer. In 2015 the duo received the Annie M.G. Schmidt Award 2014, awarded to the best theatrical song of the year, for their song Ik heb een man gekend (I knew this guy). Earlier on in their career Yentl en de Boer was awarded the Wim Sonneveld Award and the Audience Award during the Amsterdam Cabaret Festival 2013 (Amsterdams Kleinkunst Festival 2013). Yentl en de Boer are praised for their harmonious vocals and witty lyrics.

Michael G. Kirby is a former member of the Wisconsin State Assembly.

Michael G. "Mike" Miller (born c. 1960) is an American politician and a Democratic member of the New York State Assembly, representing the 38th Assembly District, which includes the Queens neighborhoods of Woodhaven, Ridgewood, Richmond Hill, Ozone Park and Glendale.

Jan de Boer may refer to:

Jan de Boer (February 15, 1859, in Nieuwe Pekela – June 8, 1941, in Amsterdam ) was a Dutch gymnast who competed in the 1908 Summer Olympics. He carried the flag for the Netherlands at the Olympic Opening Ceremonies in London.

Michael G. Barbour (born 1942) is a notable California botanist and ecologist. He is a Professor Emeritus at the University of California, Davis. His fields of expertise have been in Autecology and synecology of plants and vegetation in stressful environments, including marine strand, tidal salt marsh, vernal pools, warm desert scrub, mixed evergreen forest, oak forest, and montane conifer forest. Research conducted in Alta and Baja California along the Pacific coast of North America, on the Gulf of Mexico coast, in northwestern Argentina, in southern Australia, in coastal and arid parts of Israel, in mountains of central-to-northern Spain, in mountains of the Canary Islands, and in mountains of Coast Range and Sierra Nevada of California.

Jan de Boer (29 August 1898 – 1 July 1988) was a Dutch association football player, who played as a goalkeeper for Ajax and the Netherlands national team.