DUP

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)