The island nation were competing in their second ever global showpiece after their debut tournament in 1974 in West Germany.
In the United States, Canada and Mexico, Haiti were drawn in Group C with Brazil, Morocco and Scotland.
The Grenadiers failed to make it to the knockout stages after three defeats, going down 1-0 to Scotland, 3-0 to Brazil and 4-2 to Morocco.
Migne has now mutually parted ways with the team.
"Haiti have reached an agreement to part ways with coach Sebastien Migne, ending the Frenchman's tenure after he led the country to their first World Cup appearance since 1974," the football federation announced, according to Reuters.
Migne had been in charge of Haiti since 2024.
Michael Olise's growing influence on France's World Cup campaign has earned him glowing praise from one of the country's greatest players, with Thierry Henry declaring the Bayern Munich winger "the most important player" in Didier Deschamps' side.
Morocco head coach Mohamed Ouahbi has challenged his players to aim for 2026 FIFA World Cup glory after the Atlas Lions secured their place in the Round of 32 with an unbeaten group-stage campaign.
Brazil and Morocco booked their places in the knockout stage of the 2026 FIFA World Cup after impressive victories in their final Group C matches.
Brazil boosted their 2026 FIFA World Cup campaign with a comfortable 3-0 win over Haiti in Philadelphia, moving to the top of Group C and ending Haiti's knockout hopes.
