List of centuries in Twenty20 International cricket
A Twenty20 International is an international cricket match between two teams, each having T20I status, as determined by the International Cricket Council, the sport's world governing body. In a T20I, the two teams play a single innings each, which is restricted to a maximum of 20 overs. The format was originally introduced by the England and Wales Cricket Board for the county cricket competition with the first matches contested on 13 June 2003 between the English counties in the Twenty20 Cup. The first T20I took place on 17 February 2005 when Australia defeated New Zealand by 44 runs at Eden Park in Auckland, with Australian captain Ricky Ponting finishing not out on 98.
A century is a score of one hundred or more runs by a batsman in a single innings. This is regarded as a notable achievement. The first century in a T20I match was scored by Chris Gayle of the West Indies who made 117 against South Africa at the inaugural ICC World Twenty20 in 2007. South Africa won the match, one of only eight occurrences which did not result in a victory to the team with the player scoring the century. One further T20I century has been scored in a match that ended in a no result. The most recent century, as of 2020, was scored by Gyanendra Malla of Nepal against Bhutan at Tribhuvan University International Cricket Ground in Kirtipur, Nepal during the 2019 South Asian Games.
India's Rohit Sharma lead the list with four T20I centuries, followed by New Zealand's Colin Munro and Australia's Glenn Maxwell with three each. A further six players have scored two T20I centuries including Evin Lewis of the West Indies. Lewis' first century came during the 2016 series against India at the Central Broward Regional Park in Lauderhill, Florida. In reply, India's K. L. Rahul finished on 110 not out, the only occasion where two T20I centuries were scored in the same match. Rahul's innings was one of the thirteen instances where a batsman scored a century in the second innings of a T20I match. In July 2018, Finch posted 172 from 76 balls against Zimbabwe during the 2018 Zimbabwe Tri-Nation Series to break his own record for the highest score in a T20I match, elipsing the 156 he set in August 2013. Rohit Sharma, David Miller of South Africa and the Czech Republic's Sudesh Wickramasekara all share the record for the fastest T20I century, reaching the milestone from 35 deliveries. Miller, Wickramasekara and Sivakumar Periyalwar of Romania are the only three players to score a T20I century batting at number five or lower.
Four designated wicket-keepers have achieved the feat – Brendon McCullum of New Zealand, Morné van Wyk of South Africa, Afghanistan's Mohammad Shahzad and Leslie Dunbar representing Serbia. Dunbar's 104 not out against Bulgaria during the 2019 Hellenic Premier League is one of three centuries to be scored on T20I debut. The others being Ravinderpal Singh of Canada and Namibia's Jean-Pierre Kotze. The oldest player to score a T20I century is the United Arab Emirates' Shaiman Anwar who was aged 38 years and 30 days when he reached 117 not out against Papua New Guinea in April 2017. At the age of 20 years and 337 days Hazratullah Zazai of Afghanistan became the youngest, scoring 162 not out in February 2019 against Ireland
, 55 centuries have been scored by 42 different players from 1,066 T20I matches. Centuries have been scored by players from 25 of the 73 teams that hold Twenty20 International status and have played a T20I match. Australia, India and New Zealand all top the list with seven centuries each. Centuries have been scored at 47 different grounds, with Pallekele International Cricket Stadium in Sri Lanka and Moara Vlasiei Cricket Ground in Romania, both leading the list with three.
Key
| Symbol | Meaning |
| Player | The batsman who scored the century |
| The batsman was named man of the match | |
| Runs | Number of runs scored |
| * | Batsman remained not out |
| Balls | Number of balls faced |
| 4s | Number of fours scored |
| 6s | Number of sixes scored |
| S/R | Strike rate |
| Inn. | Innings in which the score was made |
| Team | The team the batsman was representing |
| Opposition | The team the batsman was playing against |
| Venue | The cricket ground where the match was played |
| Date | The date when the match was played |
| Result | Result for the team for which the century was scored |
| D/L | The result was decided by the Duckworth–Lewis method |
| S/O | The result was decided by a Super Over |