| 1999 Women's Five Nations Championship | |
| Date: | 6 February 1999 - 10 April 1999 |
| Countries: | |
| Count: | 3 |
| Grand Slam: | (3rd title) |
| Triple Crown: | (3rd title) |
| Matches: | 10 |
| Previous Year: | 1998 |
| Previous Tournament: | 1998 Women's Home Nations Championship |
| Next Year: | 2000 |
| Next Tournament: | 2000 Women's Five Nations Championship |
The 1999 Women's Five Nations Championship was the first Women's Five Nations Championship and was won by, who achieved the Grand Slam.
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