DUP or Dup may refer to: Politics Democratic Unionist Party, a conservative and unionist party in Northern Ireland Democratic Unionist Party (disambiguation) Democratic Union Party (disambiguation) Democratic United Party (South Korea), a former name of the Democratic Party of Korea Computing dup (system call) DUP programming language Other uses Dup (drum), a Caribbean membranophone Dup (cuneiform), a sign in cuneiform writing Dances of Universal Peace, a spiritual practice Daughters of Utah Pioneers, a women's organization Duano' language (ISO-639: dup) See also Dupe (disambiguation) Duplication (disambiguation)