Xavier Colin Bartlett is an Australian international cricketer who represents the Australia national cricket team in ODI and T20I cricket. A right-arm fast-medium bowler, Bartlett plays for Queensland, Brisbane Heat and the Punjab Kings.

Bartlett was born in Adelaide, South Australia, but moved with his family to the Gold Coast, Queensland, in 2005 at the age of seven. He began playing junior cricket for Surfers Paradise and made his first grade debut for the Gold Coast Dolphins in November 2015 at the age of 17. Bartlett graduated from The Southport School in 2016 as a member of Radcliffe House. While at the school, he represented the school's First XI cricket team in both 2015 and 2016; winning the Westcott Family Trophy for First XI bowler of the year alongside teammate Jack McDonald and played a pivotal role in TSS's 2015 First XI GPS Premiership winning season.

In December 2017, he was named in Australia's squad for the 2018 Under-19 Cricket World Cup.

In January 2024, he earned his maiden call-up to Australia's One Day International (ODI) squad for their series against the West Indies, as an injury replacement for Jhye Richardson. He made his debut in the first match of the series. On debut he recorded figures of 4/17 which earned him the Player of the Match. At the time of his debut these are the second best bowling figures recorded for an Australian debutant in ODIs. After being rested for the second match in the series, he returned in the third match taking 4/21. This performance saw him pick up his second player of the match, ultimately earning him the player of the series.