The 2015 FIL Rathbones Women's U-19 World Lacrosse Championship was the sixth FIL Women's Under-19 World Lacrosse Championship, an international field lacrosse tournament that is held every four years and is sponsored by the Federation of International Lacrosse. It took place from 23 July to 1 August 2015 in Edinburgh, Scotland. The games were played at the University of Edinburgh – Peffermill Playing Fields. The Canadian team won its first world championship at this event in defeating the United States in the final.