The Nordic Opening is a cross-country skiing event held annually since the 2010–11 season in Ruka, Finland or Lillehammer, Norway. The Nordic Opening is a Stage World Cup event in the FIS (International Ski Federation) Cross-Country World Cup, and are held as the first or second World Cup race weekend of the season.

The inaugural Nordic Opening was held in 2010 and was originally named Ruka Triple. The editions of the mini-tour hosted in Lillehammer is also known as Lillehammer Triple.

Each Nordic Opening consists of three stages; a sprint, an individual race and a pursuit. As of 2019, the prize money for the event amount to 240,000 Swiss francs, shared out on both men and women. Men's and women's events are held together on the same days, with the only difference being the distance skied.

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