The two official languages of Haiti are French and Haitian Creole. French is the principal written and administratively authorized language (as well as the main language of the press) and is spoken by 42% of Haitians.
It is spoken by all educated Haitians, is the medium of instruction in most schools, and is used in the business sector. It is also used in ceremonial events such as weddings, graduations and church masses. Haiti is one of two independent nations in the Americas (along with Canada) to designate French as an official language; the other French-speaking areas are all overseas départements, or collectivités, of France.

Source: https://en.wikipedia.org/wiki/Haiti#Languages