The men's 100 metre breaststroke competition of the swimming events at the 1967 Pan American Games took place on 30 July at the Pan Am Pool.

[1][2] It was the first appearance of this event in the Pan American Games.

[3][4][5][6][7][8] This race consisted of two lengths of the pool, both lengths being in breaststroke.

[9] All times are in minutes and seconds.

The final was held on July 30.