Unionist

Unionist may refer to:


 * A member or supporter of a trade union

United Kingdom

 * Unionism in the United Kingdom
 * Unionism in Ireland
 * Unionism in Scotland
 * Unionist Party (Scotland)
 * Scottish Conservative & Unionist Association
 * Conservative Party, known simply as Conservatives

Other places in Europe

 * Unification of Moldova and Romania, Romanian-Moldovan Unionists
 * Spanish unionism
 * Committee of Union and Progress, commonly CUP or Unionists, Turkey (Ottoman Empire)
 * Unionism in Belgium

Asia

 * Unionist Party (Punjab), India

North America

 * Unionist (United States), a member or supporter of the twenty-three Northern states that were not part of the seceding Confederacy during the American Civil War
 * Southern Unionist, a White Southerner who either opposed secession and the Confederate States of America and/or supported the Union or stayed neutral
 * National Union Party (United States), a political party that ran briefly in the 1864 presidential election
 * Unionist Party (Canada), a merger of parties that led Canada during World War I