Dominican Republic–Haiti relations are the diplomatic relations between the Dominican Republic and the Republic of Haiti. Relations have long been hostile due to substantial ethnic and cultural differences, historic conflicts, territorial disputes, and sharing the island of Hispaniola, part of the Greater Antilles archipelago in the Caribbean region. The living standards in the Dominican Republic are considerably higher than those in Haiti. The economy of the Dominican Republic is ten times larger than that of Haiti.The migration of impoverished Haitians and historical differences have contributed to long-standing conflicts.
The island of Hispaniola was the site of the first permanent European settlement in the Americas, the Captaincy General of Santo Domingo established in 1493 by Spain.The Spanish Empire controlled the entire island from the 1490s until the 17th century. Due to its strategic location British and French pirates began establishing bases on the western side of the island. Battles began during colonial times and developed into constant conflicts between the European powers. Eventually the island was divided in 1697, with Spain controlling the eastern side and France controlling the western side.