This is an overview of the gold medalist relay teams in swimming at the Olympics and the World Aquatics Championships. These tournaments are the only global long course (50-meter pool) swimming championships organized by world swimming federation FINA. This list gives an overview of the dominant swimming nations throughout the history of swimming. Currently, the Olympic program includes six relay events (three for men, three for women), and the World Championships program eight (three for men, three for women, two mixed). These numbers were lower in the past, as shown in the table.