The men's 100 metre breaststroke event at the 1968 Summer Olympics took place between 18 and 19 October in the Alberca Olímpica Francisco Márquez.
[1] [2] This swimming event used the breaststroke.
Because an Olympic size swimming pool is 50 metres long, this race consisted of two lengths of the pool.
Heat 1 Heat 2 Heat 3 Heat 4 Heat 5 Heat 6 Key: OR = Olympic record