| 1926 Five Nations Championship | |
| Date: | 3 January - 2 April 1926 |
| Countries: | |
| Champions: | and |
| Matches: | 10 |
| Previous Year: | 1925 |
| Previous Tournament: | 1925 Five Nations Championship |
| Next Year: | 1927 |
| Next Tournament: | 1927 Five Nations Championship |
The 1926 Five Nations Championship was the twelfth series of the rugby union Five Nations Championship following the inclusion of France into the Home Nations Championship. Including the previous Home Nations Championships, this was the thirty-ninth series of the annual northern hemisphere rugby union championship. Ten matches were played between 3 January and 2 April. It was contested by England, France, Ireland, Scotland and Wales.
missed out on a first Grand Slam after losing to at St. Helen's.