My Big Fat Greek Wedding 3 is an American romantic comedy film written and directed by Nia Vardalos. The third installment in the My Big Fat Greek Wedding franchise, the film stars Vardalos, John Corbett, Louis Mandylor, Elena Kampouris, Gia Carides, Joey Fatone, Lainie Kazan and Andrea Martin. It is the first entry not to star Michael Constantine, who died in 2021. Filming took place in Athens, Greece, from June 22 to August 10, 2022.

The film was released in the United States on September 8, 2023, by Focus Features.