Athletics at the 1999 Pan American Games – Women's 100 metres

The women's 100 metres event at the 1999 Pan American Games was held July 24–25.

Heats
Qualification: First 2 of each heat (Q) and the next 2 fastest (q) qualified for the final.

Wind: Heat 1: +1.4 m/s, Heat 2: +0.4 m/s, Heat 3: -1.1 m/s

Final
Wind: +1.7 m/s