The collision occurred yesterday at about 7 a.m. on Highway 137 in Ste-Cécile-de-Milton, in Quebec's Montérégie region.
The roads were slippery and the driver, a 32-year-old woman, lost control of her car. Her vehicle left its lane and collided with an oncoming van.
The girl, who was seriously injured, died last night around 8 p.m. at Montreal's Sainte-Justine hospital.
The driver of the other vehicle was injured, but not critically.
The Sûreté du Québec is currently investigating the circumstances of the accident.