Cross-country skiing at the FIS Nordic World Ski Championships 2009

Ola Vigen Hattestad won two golds in the sprint events (individual and team).

Dario Cologna of Switzerland, the overall World Cup leader entering the championships, won no medals, with a best finish of fourth in the individual sprint event.

Individual sprint silver medalist Kikkan Randall became the first American woman to medal in cross-country skiing at the World Championships and the second American overall to do so (Lindsey Van had won a gold medal in the women's ski jumping individual normal hill event at the championships four days earlier).

Cross country World Cup Sprint leader Petra Majdič of Slovenia won no medals, earning her best finish of ninth in the pursuit event.

[1] Jens Arne Svartedal of Norway was defending champion, but was eliminated in the quarterfinals at these championships.

Zorzi did not compete, but Pasini did though he was eliminated in the semifinal round with teammate Fulvio Scola.

[4] Hattestad and Kjølstad, the gold and silver medalists in the individual sprint event the day before, teamed up to win the gold medal in the team sprint event while Jauhojärvi and Nousiainen earned their first championship medals.

Mathias Fredriksson of Sweden had the fastest time in the freestyle leg to move from 39th at the end of the classical portion to finish 17th.

[1] Odd-Bjørn Hjelmeset of Norway was the defending champion, but did not participate due to this event being held in freestyle.

Northug, seventh at the 42.5 km mark, would win his third gold medal at the championships and fourth overall.

Italy's Pietro Piller Cottrer had the fastest third leg, moving his team from tenth to fifth (The Italians would finish fourth.)

[1] Norway's Astrid Jacobsen was the defending champion, but did not make past the qualifying round.

[19] Fourth-place finisher Natalya Matveyeva of Russia would be banned for doping on 23 December 2009 though she had tested positive at the 2010 Winter Olympic test event at Whistler Olympic Park in Canada which were held a month prior to the world championships.

[1] Organizing Committee chair Katerina Neumannová of the Czech Republic is two-time defending champion, but retired after the 2006–07 season.

Kowalczyk and Saarinen switched medal positions from the 10 km event two days earlier.

[1] Finland's Kuitunen was the defending champion, but did not finish the event at this championships, having dropped out after the 15 km mark.

[1] The Finnish team of Kuitunen, Aino-Kaisa Saarinen, Roponen and Pirjo Manninen (Muranen since June 2007) were the defending champions and repeated albeit in a different starting order.

Sweden's Kalla had the fastest time in the freestyle technique and the anchor leg to propel her team from sixth to the bronze medal, losing the silver to Germany by 0.4 seconds.