| Administrator(s) | England and Wales Cricket Board |
|---|---|
| Cricket format | 50 over |
| Tournament format(s) | League system |
| Champions | Kent (3rd title) |
| Participants | 34 |
| Most runs | Heather Knight (622) |
| Most wickets | Charlotte Anneveld (24) |
The 2009 Women's County One-Day Championship was the 13th cricket Women's County Championship season. It ran from May to September and saw 30 county teams and teams representing Ireland, Scotland, Wales and the Netherlands compete in a series of divisions. Kent Women won the County Championship as winners of the top division, going through the season unbeaten and winning their third title.