Przemysław Marcin "Przemek" Karnowski (Polish pronunciation: ; born 8 November 1993) is a Polish basketball player for Twarde Pierniki Toruń of the Polish Basketball League. He completed his college career at Gonzaga University in the United States in 2017. He has also played for the Polish national team. He had been viewed by some NBA draft analysts as a potential first round pick in the 2016 draft, but chose to return to Gonzaga for his final season of college eligibility in 2016–17.
Przemek narrowed his decision down to California and Gonzaga. He committed to Gonzaga on May 29, 2012. For his freshman season he was behind star Canadian center Kelly Olynyk, a future lottery pick in the 2013 NBA draft. In the 2013-14 season Karnowski averaged 10.4 points, 7.0 rebounds and 1.7 blocks per game as the Bulldogs' starting center. As a junior, he averaged 11 points, 5.8 rebounds and 1 block per game. Due to back problems, Karnowski had surgery after playing only five games in his senior season. He was averaging 8.8 points and 5.4 rebounds in those five games.