Haitian Carnival is a celebration held over several weeks each year leading up to Mardi Gras. Haitian Defile Kanaval is the Haitian Creole name of the main annual Mardi Gras carnival held in Port-au-Prince, Haiti.
Carnival is Haiti’s biggest celebration, from “carnavale,” which in Latin means “meat farewell.” It begins at the end of January and ends with “Fat Tuesday,” or Mardi Gras, when different types of fats are consumed.

Source: https://en.wikipedia.org/wiki/Haitian_Carnival, http://traveltips.usatoday.com/celebrations-haiti-107423.html