The 2018 ASEAN Women's T20 Open Tournament was a women's Twenty20 (T20) cricket tournament held in Thailand from 6 to 13 March 2018.

The six participating teams were the women's national sides of Bhutan, Hong Kong, Indonesia, Malaysia, Tanzania and hosts Thailand.

[1][2] The matches were all played at the Terdthai Cricket Ground in Bangkok.

[3] Matches did not have Twenty20 International status, as the tournament was played a few months before the International Cricket Council's decision to grant full Twenty20 International status to all its members came into effect from 1 July 2018 for women's teams.

[4] The hosts won the round-robin tournament with a perfect record of five wins from five matches, while Tanzania finished as runners-up.