| 1985 Five Nations Championship | |
| Date: | 2 February - 20 April 1985 |
| Countries: | |
| Count: | 10 |
| Triple Crown: | (6th title) |
| Matches: | 10 |
| Tries: | 19 |
| Top Point Scorer: | Michael Kiernan (42 points) |
| Top Try Scorer: | Trevor Ringland (3 tries) |
| Previous Year: | 1984 |
| Previous Tournament: | 1984 Five Nations Championship |
| Next Year: | 1986 |
| Next Tournament: | 1986 Five Nations Championship |
The 1985 Five Nations Championship was the fifty-sixth series of the rugby union Five Nations Championship. Including the previous incarnations as the Home Nations and Five Nations, this was the ninety-first series of the northern hemisphere rugby union championship. Ten matches were played between 2 February and 20 April. The championship was contested by England, France, Ireland, Scotland and Wales.
The championship winner was Ireland, winning their tenth title (excluding eight other shared titles); it would prove to be their last in 24 years, until their Grand Slam in 2009. Ireland also claimed the Triple Crown, their sixth, which would be their last until 2004.
The tournament suffered three match postponements due to bad weather. The opening fixtures, Ireland v England and France v Wales, were postponed to late March and the Wales v England match was put back from February to April because of a frozen pitch in Cardiff. The rescheduled match was notable for the debut, at fly half for Wales, of Jonathan Davies.[1]
The teams involved were:
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