What is the official language for greater Antilles?

There is no single official language for the Greater Antilles. This is because the Greater Antilles is a geographical region, not a political entity. It comprises several countries, each with its own official language(s):

* Cuba: Spanish

* Dominican Republic: Spanish

* Haiti: Haitian Creole (French-based creole), and French

* Jamaica: English

* Puerto Rico: Spanish and English (both official, but Spanish is more commonly spoken)

Therefore, the official language depends on the specific island or country you are referring to within the Greater Antilles.