The women's 80 metres hurdles event at the 1948 Summer Olympic Games took place on 3 and 4 August.

The final was won by Dutch athlete Fanny Blankers-Koen.

[1] Prior to the competition, the existing World and Olympic records were as follows.

The fastest three runners in each heat advanced to the semifinals.

Key: Est = Time is an estimate, OR = Olympic record Wind: 1.9 m/s