Khem Xavier Birch (born September 28, 1992) is a Canadian professional basketball player for Fenerbahçe of the Turkish BSL and the EuroLeague.

[10] On June 30, 2015, Birch signed to play in Turkey, with Uşak Sportif of the Turkish Super League (BSL).

[14] On June 14, 2016, Birch signed to play in Greece, on a 2-year €1.1 million net income contract,[15] with the defending Greek Basket League champions, Olympiacos.

[20] On March 14, 2019, Birch recorded a double-double, tying his career-high with 13 points, 11 rebounds, one assist, and two steals in a 120–91 win against the Cleveland Cavaliers.

[22] On March 26, 2021, Birch had his best game of his career when he netted new career-highs with 14 points, 15 rebounds and four steals with four assists and two blocks in a 112–105 loss to the Portland Trail Blazers.

[24] On April 10, 2021, Birch signed with the Toronto Raptors for the remainder of the 2020–21 season,[25] making his debut the next day during a 102–96 loss to the New York Knicks, getting four points and five rebounds in 18 minutes of action.

[26] Three days later, Birch tied his career-high with 14 points, six rebounds, one assist, one steal and two blocks in a 117–112 win against the San Antonio Spurs.

With Canada's Under-18 junior national team, he played at the 2010 FIBA Americas Under-18 Championship, where he won a bronze medal.

With Canada's senior national team, he played at the 2016 Manila FIBA World Olympic Qualifying Tournament.