Plauché, or Plauche, is a French-language surname. It may refer to:
Gary Plauché (1945–2014), American father who avenged the kidnapping and sexual assault of his son by shooting Jeffrey Doucet in the head. Jean Baptiste Plauché (1785–1860), Louisiana soldier and politician Vance Plauché (1897–1976), American politician, attorney, member of United States House of Representatives