The 2025 T20 Blast (also known as 2025 Vitality Blast for sponsorship reasons) is the 23rd edition of the T20 Blast (currently known as the Vitality Blast), a professional Twenty20 cricket league played in England and Wales. The tournament is taking place from 29 May to 13 September 2025. The domestic T20 competition was run by the England and Wales Cricket Board (ECB) and was branded as the Vitality Blast due to the tournament's sponsorship. 
Gloucestershire are the defending champions, having won their maiden title during the previous season.
Format.
The playing format is the same as the previous season, where groups remain the same with the familiar North and South split, while each county will play 14 group-stage matches, seven at home and seven away.
Teams.
The teams are divided into the following groups:
Fixtures.
In November 2024, the ECB announced the fixtures for the tournament.