The 2012 IFSC Climbing World Championships, the 12th edition, were held in Paris, France, from 12 to 16 September 2012.
65 athletes attended the women's lead competition.
102 athletes attended the men's lead competition.
66 athletes attended the women's bouldering competition.
114 athletes attended the men's bouldering competition.
48 athletes competed in the women's speed climbing event.
55 athletes competed in the men's speed climbing event.