The 2025 Men's T20I Inter-Insular Series, consisting of three Twenty20 International (T20I) matches, took place at the Grainville Cricket Ground, Saint Saviour, Jersey, in June 2025. This was the sixth men's Twenty20 Inter-Insular series, and the fifth to be played with official T20I status. Jersey were the defending champions, having won the 2024 series 2âÂÂ1.
Jersey and Guernsey had played an Inter-Insular cricket match annually since 1950, generally as 50-over contests. A Twenty20 series was played for the first time in 2018. The T20 series has had official T20I status since the 2019 T20 Inter-Insular Cup, following the International Cricket Council's decision to grant T20I status to all matches played between Associate Members after 1 January 2019.
Guernsey's preparations included a win against a Marylebone Cricket Club team in Saint Peter Port before travelling to Jersey.
After the first two matches (which were both rain-affected and determined using the DLS method) were split, Jersey won the decider by three runs to retain the trophy 2âÂÂ1.
A women's match was played on 5 July at the King George V Sports Ground in Castel. Jersey won the rain-shortened contest by 89 runs under the DLS method.
On 9 August 2025, the men's teams also contested the 71st annual Inter-Insular Trophy 50-over match at King George V Sports Ground. Jersey won by eight wickets to retain the trophy.
Jersey included former Jersey Reds and Worcester Rugby player Scott van Breda in their squad.
The 50-over Inter-Insular Trophy match was played on 9 August 2025 at King George V Sports Ground in Castel, Guernsey. This was the 71st annual Inter-Insular Trophy match between the two sides. Jersey won by eight wickets.