The women's 100 metre freestyle was a swimming event held as part of the swimming at the 1928 Summer Olympics programme.

The competition was held on Friday and Saturday, 10 and 11 August 1928.

Twenty-four swimmers from eleven nations competed.

In the first semi-final Albina Osipowich equaled the Olympic record with 1 minute 12.2 seconds.

In the final Albina Osipowich again bettered the Olympic record with 1 minute 11.0 seconds.