Thon Marial Maker (born 25 February 1997) is a South Sudanese-Australian[2] professional basketball player for the Rio Grande Valley Vipers of the NBA G League.

His uncle, a local administrator, arranged for Maker, his younger brother, Matur, and his aunt to escape the civil war to Uganda.

[5] When he was 14, Maker was discovered playing soccer in the Perth suburb of Mirrabooka, by Edward Smith, an Australian of African-American heritage who helped children from migrant backgrounds receive opportunities they otherwise would not get.

[6] Smith had previously helped fellow South Sudanese immigrants Ater Majok and Mathiang Muo, now both professional basketball players.

[5] During his freshman and sophomore years playing for Carlisle's varsity team, Maker averaged 22.2 points, 13.1 rebounds, 1.9 assists, 1.4 steals and 4.5 blocks over a total of 53 games.

[8] As a sophomore, he earned 2013–14 Gatorade Virginia Boys Basketball Player of the Year honours after leading Carlisle to a state championship.

[9][10] On 5 September 2014, Maker and his brother enrolled at the Athlete Institute in Mono, Ontario where Edward Smith was already an assistant coach.

[12] On 30 December 2014, Maker scored 24 points and 11 rebounds as his team loss to Harry Giles and Wesleyan Christian Academy in the championship game of the High School OT Holiday Invitational tournament.

[13] On 18 February 2015, Maker announced his decision to reclassify into the 2015 class, which would have made 2014–15 his final year of high school.

[32] Despite those concerns, he was selected with the 10th overall pick in the 2016 draft by the Milwaukee Bucks,[33][34] becoming the first high school player taken in the first round since the 2005 Collective Bargaining Agreement went into effect.

[37] Maker made his NBA debut on 30 October 2016, entering the game with 95 seconds remaining in the final term of the Bucks' 98–83 loss to the Detroit Pistons;[38] he recorded one rebound.

[49] By late January, having had a reduced role in 2018–19 under new coach Mike Budenholzer, Maker reportedly requested a trade from the Bucks.

[50] On 7 February 2019, Maker was acquired by the Detroit Pistons in a three-team trade involving the Bucks and New Orleans Pelicans.

[53] It was announced on 19 November 2020 that Pistons general manager Troy Weaver opted to not extend Maker a qualifying offer, allowing him to become a free agent.

[73] His brother, Matur, attempted to enter the 2018 NBA draft in a manner similar to Thon before deciding to play internationally instead.