Zach Auguste (born July 8, 1993) is a Greek-American professional basketball player, who last played for Galatasaray Istanbul of the Turkish Super League (BSL).
He was born in Cambridge, Massachusetts and started playing high school basketball for Marlborough. In 2011, he moved to the university preparatory New Hampton School, where he was nominated for the 2012 McDonald's All-American Game. After graduating from New Hampton, Auguste enrolled in the University of Notre Dame, to play college basketball for the Fighting Irish. Spending his freshman and sophomore seasons mainly as a reserve player, Auguste rose to prominence during his junior season in 2014–15, when his team won the ACC Tournament title, and went to the NCAA Elite Eight.
On October 27, he signed with Muratbey Uşak Sportif of the Turkish Super League, for the 2016–17 season.
He averaged 11.7 points, 7.5 rebounds, 0.6 assists, 0.7 steals, and 0.4 blocks per game, in 23 games played in the Turkish Super League. He also averaged 13.4 points, 8.8 rebounds, 0.6 assists, 0.5 steals, and 0.6 blocks per game, in 11 games played in the Champions League. After his club was parachuted down into the European-wide 4th-tier level FIBA Europe Cup, he averaged 17.8 points, 8.5 rebounds, 0.8 assists, 1.5 steals, and 0.5 blocks per game, in 4 games played in the FIBA Europe Cup 2016–17 season.
Auguste then played with the Miami Heat's summer league squad for the 2017 Las Vegas Summer League. He averaged 10 points, 5.2 rebounds, 1.2 assists, 0.4 steals, and 0.4 blocks per game in the Las Vegas Summer League, and 7.3 points, 6.3 rebounds, 0.3 assists, 2.0 steals, and 0.3 blocks per game in the Orlando Summer League. On June 30, 2017, Auguste signed a one-year deal with Panathinaikos.
Auguste signed with Galatasaray of the Turkish Basketball Super League and the EuroCup on August 7, 2018. On August 7, 2019, Auguste renewed his contract with Galatasaray for another season.
He improved to 13.4 points and 7.1 points per EuroCup contest and threw in 12.4 points, 6.7 rebounds, 1.5 steals, 1.4 assists, and 1.0 blocks per match at the domestic level.