Constitutional Union Party may refer to: Union Party (United States, 1850), a party active in the south in the early 1850s Constitutional Union Party (United States), a party that was active in the United States on a national level in 1860 Constitutional Union Party (Cuba), a political party in Cuba during the Spanish colonial times. Constitutional Union Party (Iraq) Constitutional Union Party (Lebanon), a political party in Lebanon and continuation of the Constitutional Bloc Constitutional Union (Morocco), a liberal conservative political party in Morocco