2006 Six Nations Championship

The 2006 RBS 6 Nations Championship was the seventh series of the rugby union Six Nations Championship to be held since the competition expanded in 2000 to include Italy. Including the previous incarnations as the Home Nations and Five Nations, this was the 112th series of the northern hemisphere rugby union championship.

This was the last Six Nations to be held before the redevelopment of Lansdowne Road into today's Aviva Stadium. Ireland played their 2007, 2008, 2009 and 2010 Six Nations home fixtures at Croke Park, also in Dublin.

Unlike most rugby union competitions, the Six Nations has not adopted a bonus point system. Match winners receive two points, with one for a draw and none for a loss. The first tiebreaker is point differential.

In this year, France won the competition on points difference over Ireland. Ireland received the consolation prize of the Triple Crown Trophy, presented for the first time that year, by winning their matches against the other Home Nations: Wales, Scotland and England. Italy once more collected the Wooden Spoon, but showed considerable improvement over past years, earning a first-ever competition point away from home in a draw against Wales. For the first time since 2000, Scotland won the Calcutta Cup.