2024 T20I Inter-Insular Series

The 2024 T20I Inter-Insular Series were two separate bilateral cricket series for men and women featuring the senior national teams of Jersey and Guernsey, of which the men's series of three Twenty20 International (T20I) matches was held in Guernsey from 22 to 23 June 2024. The first two matches were played at King George V Sports Ground in Castel, and the final game was played at the Guernsey Rovers Athletic Club Ground in Port Soif. The women's series consisted of a single Twenty20 International (T20I), which has held at the Grainville Cricket Ground in Jersey.

Jersey and Guernsey have 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, and the 2019 T20 Inter-Insular Cup had official T20I status for the first time, following the International Cricket Council's decision to grant T20I status to all matches played between Associate Members after 1 January 2019. Jersey were defending T20 champions, having won the 2023 series 2–0.

The men's series was played on artificial surfaces to aid the preparations of both sides ahead of their respective European Qualifer events later in the summer. Jersey retained the series by winning both matches on 22 June, before Guernsey picked up a consolation victory in the third match. Guernsey's victory was their first win against their neighbours in the format, and their first success over them in any format since 2015.

In the women's match, hosts Jersey defeated Guernsey by 104 runs.