Haiti allows citizens from most countries to stay visa free for 3 months.
[2] Visitors must hold passports that are valid for at least 6 months from the date of arrival.
As per the Embassy of Haiti in Washington, D.C.'s website,[3] pre-arranged visas are required for nationals of the following countries:
Nationals of these countries may enter visa free for 3 months if they hold a valid United States, Canadian, United Kingdom or Schengen visa or a resident permit or if they are of Haitian origin.
2 Azerbaijan, Georgia, Turkey, Kazakhstan, Russia and the partially recognised republics of Abkhazia and South Ossetia each span the conventional boundary between Europe and Asia.