Matthew "Mac" McClung (born January 6, 2000) is an American college basketball player for the Georgetown Hoyas of the Big East Conference. A consensus three-star recruit and among the top-ranked high school players in Virginia, McClung rose to national acclaim online in 2017 for his slam dunking ability.
McClung grew up in Gate City, Virginia, a small town of about 2,000 in the Tri-Cities metropolitan area straddling the Tennessee–Virginia border, where he initially began playing football—a sport that is far more popular than basketball in Southwest Virginia. Family members recalled in a 2018 interview that McClung was extraordinarily competitive as a child. His father Marcus said of him, "Mac was just born with it. If you’re fixing a bowl of cereal, he’s going to make a competition." His older sister Anna would add, "He would just come at you every day, no matter how small he was." His parents built a basement gym in their home, initially for Anna, but Mac would regularly use it as he grew up—though he was so competitive that his father would frequently ban him from the gym to allow Anna to work out undisturbed.