The Twenty20 East Asia Cup is a quadrangular cricket tournament played between teams representing China, Hong Kong, Japan and South Korea.

[1] The first edition took place in 2015, a women's tournament in South Korea.

[3] The 2019 women's tournament was the first to be played with full Women's Twenty20 International (WT20I) status, after the International Cricket Council (ICC) had granted T20I status to matches between all of its members.

[5] In May 2021, the four cricket associations signed an agreement for the next four editions of the women's tournament which would become an annual event.

[8] The 2024 men's tournament was the first to be played with full Twenty20 International (T20I) status, after the International Cricket Council (ICC) had granted T20I status to matches between all of its members.