Juste Chanlatte (Comte de Rosier) (1766–1828) was a Haitian editor, journalist, poet, playwright and a count. He served as secretary to King Henri I of the Kingdom of Haiti with the nobility title of "Comte de Rosier." Chanlatte was born in Port-au-Prince and educated in France. He wrote for La Gazette du Cap and later was the editor of the official government publication under President Jean-Pierre Boyer, le Télégraphe.