David Andrew Warner (born 27 October 1986) is an Australian international cricketer and a former captain of the Australian national team in limited overs format and a former Test vice-captain. A left-handed opening batsman, Warner is the first Australian cricketer in 132 years to be selected for a national team in any format without experience in first-class cricket. He is widely considered as one of the greatest batsman of his era. He plays for New South Wales and played for the Sydney Thunder in domestic cricket.

In March 2018, following a preliminary investigation into ball tampering by the Australian team in the third match of their Test series against South Africa, he was suspended, charged with bringing the game into disrepute. Following a board meeting on 28 March 2018, Cricket Australia banned Warner from all international and domestic cricket in Australia for one year, and from any leadership positions permanently.