| Dates | 15 May 2015 – 29 August 2015 |
|---|---|
| Administrator(s) | England and Wales Cricket Board |
| Cricket format | Twenty20 |
| Tournament format(s) | Group stage and knockout |
| Champions | Lancashire Lightning (1st title) |
| Participants | 18 |
| Matches | 133 |
| Most runs | James Vince, Hampshire (710) |
| Most wickets | James Faulkner, Lancashire Lightning (25) |
| Official website | NatWest T20 Blast |
The 2015 NatWest T20 Blast was the thirteenth edition of the T20 Blast, the English and Welsh Twenty20 cricket competition. The competition ran from 15 May 2015 to Finals Day at Edgbaston on 29 August. The competition was won for the first time by Lancashire Lightning, who defeated Northamptonshire Steelbacks in the final.