| 2026 Men's Six Nations Championship |
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| Date | 5 February – 14 March 2026 |
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| ← 2025 (Previous) |
(Next) 2027 → |
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The 2026 Men's Six Nations Championship (known as the Guinness Men's Six Nations for sponsorship reasons and branded as M6N) is a rugby union competition scheduled to take place from early February to mid-March 2026, featuring the men's national teams of England, France, Ireland, Italy, Scotland and Wales. It will be the 132nd season of the competition (including its incarnations as the Home Nations Championship and the Five Nations Championship), but the 27th since it expanded to become the Six Nations Championship in 2000. It will begin on 5 February 2026 with a Thursday night match between France and Ireland, and end with France against England on 14 March. France will enter the tournament as reigning champions, having reclaimed the title from Ireland in 2025.