Independent Countries:
* Cuba
* Dominican Republic
* Puerto Rico (US territory, but Spanish is the primary language)
Dependencies:
* Dominica (French is the official language, but Spanish is widely spoken)
Other:
* Hispaniola (shared by the Dominican Republic and Haiti, with the Dominican Republic being Spanish-speaking)
It's important to note that while these islands are primarily Spanish-speaking, there are also significant populations who speak other languages, such as English, French, and Haitian Creole.