The women's 100 metre breaststroke event at the 1972 Olympic Games took place between September 1 and September 2 in the Schwimmhalle, Olympiapark, München.

[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 1 Heat 2 Key: OR = Olympic record Key: WR = World record