Jan Olof Daniel Rickardsson is a Swedish retired cross-country skier who started competing in 2002.

The FIS Nordic World Ski Championships 2011 took place from 23 February to 6 March 2011 in Oslo, Norway, at the Holmenkollen National Arena. It was the fifth time these championships had been hosted in Holmenkollen, having been done previously in 1930, the 1952 Winter Olympics, 1966, and 1982. On 25 May 2006, the 45th FIS Congress in Vilamoura, Portugal, selected the Holmenkollen area over both Val di Fiemme, Italy, and Zakopane, Poland, with a vote of 12 to 4 to 0. These games coincided with the Holmenkollen Ski Festival as they have previously in 1930, 1952, 1966, and 1982.