Swimming at the 1980 Summer Olympics – Men's 4 × 100 metre medley relay

The men's 4 × 100 metre medley relay event at the 1980 Summer Olympics was held in Moscow, Soviet Union on 24 July 1980 in the Olympiski Sports Complex. A total of 13 teams participated in the event. These were split over two heats held in the morning of that day, and the eight fastest teams qualified for the finals held in the evening of the same day.

Swimming at the 1980 Summer Olympics – Men's 4 × 100 metre medley relay

The men's 4 × 100 metre medley relay event at the 1980 Summer Olympics was held in Moscow, Soviet Union on 24 July 1980 in the Olympiski Sports Complex. A total of 13 teams participated in the event. These were split over two heats held in the morning of that day, and the eight fastest teams qualified for the finals held in the evening of the same day.