Final answer:
The nation on the western side of the island of Hispaniola is Haiti. Hispaniola is also occupied by the Dominican Republic on the eastern side.
Step-by-step explanation:
The island of Hispaniola is shared by two nations: Haiti and the Dominican Republic. The nation that occupies the western side of Hispaniola is Haiti. This division dates back to the colonial agreement between France and Spain, whereby France took control of the western portion and Spain took the eastern portion, which is now the Dominican Republic.
The Dominican Republic is the larger of the two and occupies the eastern side of the island. It is a democratic country and its economy has transitioned from agriculture to being primarily service-oriented.