The women's 100 metre freestyle was a swimming event held as part of the swimming at the 1936 Summer Olympics programme.

[1] It was the sixth appearance of the event, which was established in 1912.

The competition was held from Saturday to Monday, 8 to 10 August 1936.

Rie Mastenbroek set a new Olympic record in the first heat with 1 minute 06.4 seconds and equaled her time in the first semi-final.

In the final she lowered the Olympic record to 1 minute 05.9 seconds.