Simone Niggli-Luder is a Swiss orienteering athlete who has twice won all four women's competitions at the world championships. She is widely seen as one of the greatest orienteers of all time.

The World Orienteering Championships is an annual orienteering event organized by the International Orienteering Federation. The first World Championships was held in Fiskars, Finland in 1966. They were held biennially up to 2003. Since 2003, competitions have been held annually. Participating nations have to be members of the International Orienteering Federation (IOF).