Source : Webster's Revised Unabridged Dictionary (1913)

Haitian \Hai"ti*an\, a. & n.
   See {Haytian}.

Haytian \Hay"ti*an\, a.
   Of pertaining to Hayti. -- n. A native of Hayti. [Written
   also {Haitian}.]

Source : WordNet®

Haitian
     adj : of or relating to or characteristic of the republic of Haiti
           or its people; "Haitian shantytowns"

Haitian
     n : a native or inhabitant of Haiti