Romeo Brin (born March 10, 1973 in Puerto Princesa, Palawan) is a retired amateur Filipino boxer. He represented the Philippines in three editions of the Olympic Games (1996, 2000, and 2004), and has captured numerous medals in both lightweight and light-welterweight divisions at the Southeast Asian Games and at the Asian Championships. Throughout his sporting career, Brin has been training for Team Caltex Boxing Club under his head coach and mentor Nolito Velasco.