The women's 100 metre freestyle competition of the swimming events at the 2012 European Aquatics Championships took place May 22, 2012 (heats) and May 23, 2012 (final).

[1] Prior to the competition, the existing world, European and championship records were as follows.

62 swimmers participated in 8 heats.

[2] The eight fasters swimmers advanced to the final.

[3] The final was held at 18.13.