[2][3][4][5] He competed at the 2022 Commonwealth Games, winning the gold medal in the men's featherweight event.

Gallagher defeated Joseph Commey via walkover in the final match in the boxing competition.

[6] He represented Ireland at the 2024 Summer Olympics, receiving a bye into the second round where he lost to Carlo Paalam from the Philippines by unanimous decision.

This biographical article related to an Irish boxer is a stub.

You can help Wikipedia by expanding it.This biographical article related to boxing in Northern Ireland is a stub.