Twenty20 cricket, sometimes written Twenty-20, and often abbreviated to T20, is a short form of cricket. At the professional level, it was originally introduced by the England and Wales Cricket Board (ECB) in 2003 for the inter-county competition in England and Wales.

In a Twenty20 game the two teams have a single innings each, which is restricted to a maximum of 20 overs. Together with first-class and List A cricket, Twenty20 is one of the three current forms of cricket recognised by the International Cricket Council (ICC) as being at the highest international or domestic level. A typical Twenty20 game is completed in about three hours, with each innings lasting around 75–90 minutes and a 10–20-minute interval.

The game has succeeded in spreading around the cricket world. On most international tours there is at least one Twenty20 match and all Test-playing nations have a domestic cup competition. The inaugural ICC World Twenty20 was played in South Africa in 2007 with India winning by five runs against Pakistan in the final.

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