The men's Sunfish competition of the sailing events at the 2023 Pan American Games in Santiago was held from October 28 to November 4 at the Cofradia Nautica del Pacifico.

Points were assigned based on the finishing position in each race (1 for first, 2 for second, etc.).

The sailor with the lowest total score won.

Lee Parkhill from Canada won the gold medal after finishing second in the medal race, ahead of his opponents for the title.

Jean Paul de Trazegnies from Peru was the runner-up and Diego González from Chile, who entered the medal race fighting for the gold in the regatta, had a poor performance in the last race to win the bronze medal.