The 2018 Asia Cup was a One-Day International (ODI) cricket tournament that was held in the United Arab Emirates in September 2018. It was the 14th edition of the Asia Cup and the third time the tournament was played in the United Arab Emirates, after the 1984 and 1995 tournaments. India were the defending champions, and retained their title, after beating Bangladesh by three wickets in the final.

A One Day International (ODI) is a form of 50 overs limited overs cricket, played between two teams with international status, in which each team faces a fixed number of overs, currently 50, with the game lasting up to 7 hours. The Cricket World Cup, generally held every four years, is played in this format. One Day International matches are also called Limited Overs Internationals (LOI), although this generic term may also refer to Twenty20 International matches. They are major matches and considered the highest standard of List A, limited-overs competition.