Nikolas Tomas Stauskas (born October 7, 1993) is a Canadian professional basketball player for the Boston Celtics of the National Basketball Association (NBA). Stauskas played two seasons of college basketball for the Michigan Wolverines from 2012 to 2014. Stauskas was drafted eighth overall in the 2014 NBA draft by the Sacramento Kings. Stauskas, whose family is of Lithuanian heritage, is a member of the Canadian national basketball team.

As a freshman for the 2012–13 Michigan Wolverines, Stauskas was named Sports Illustrated National Freshman of the Week once, Big Ten Conference Freshman of the Week three times and to the Wayman Tisdale Award, United States Basketball Writers Association's National Freshman of the Year, top 12 midseason list. During the 2013 NCAA Men's Division I Basketball Tournament, he earned South All-Regional Team recognition. As a sophomore for the 2013–14 team, Stauskas went on to be named a 2014 NCAA Men's Basketball consensus All-American and was named Big Ten Conference Men's Basketball Player of the Year for the 2013–14 Big Ten Conference men's basketball season.

Stauskas is often considered a "draft bust" and one of the biggest disappointments of the 2014 NBA draft.