The men's 4 × 100 metre medley relay competition of the swimming events at the 1959 Pan American Games took place on 2 September. The defending Pan American Games champion is the United States.
The men's 4 × 100 metre medley relay competition of the swimming events at the 1959 Pan American Games took place on 2 September. The defending Pan American Games champion is the United States. (en)
The men's 4 × 100 metre medley relay competition of the swimming events at the 1959 Pan American Games took place on 2 September. The defending Pan American Games champion is the United States. (en)