From Haiti +‎ -an.

• (UK, US) IPA^(key): /ˈheɪ.ʃən/
• Rhymes: -eɪʃən

• Audio (US):

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Haitian (plural Haitians)

1. A person from Haiti or of Haitian descent.
   • 2022 October 14, Michel DeGraff, “As a Child in Haiti, I Was Taught to Despise My Language and Myself”, in The New York Times‎^[1], archived from the original on 2 June 2023:

     The goal was to make Haitians dependent on France, from their economy to their culture to the very words they spoke.

Haitian

1. Haitian Creole, one of the official languages of Haiti.

Haitian (not comparable)

1. Of, from, or pertaining to Haiti, its inhabitants, or their language.
   • 2022 October 14, Michel DeGraff, “As a Child in Haiti, I Was Taught to Despise My Language and Myself”, in The New York Times‎^[2], archived from the original on 2 June 2023:

     That would have given Haitian students a chance to function in both languages while prizing their national identity.

• Haitianization
• Haitianness

• Haitian creole Wikipedia
• Haitian Creole - English Dictionary: from Webster's Dictionary - the Rosetta Edition.