Surfing at the 2023 Pan American Games – Men's longboard

The men's longboard competition of the surfing events at the 2023 Pan American Games was held from October 24 to 30 at Punta de Lobos beach in Pichilemu, Chile.

Finals
The winner of the bronze medal match advances to the gold metal match while the loser receives the bronze medal.

Elimination rounds
The winners of each match advance to the next round while the losers advance to their respective round in the repechage. The results during the elimination rounds were as follows:

Repechage
The winners of each match advances to the next round. The winner of the fourth round advance to the bronze medal match. The results during the repechage rounds were as follows: