Jalen Marquis Brunson (born August 31, 1996) is an American professional basketball player for the New York Knicks of the National Basketball Association (NBA). He played college basketball for Villanova University, where he was the National Player of the Year as a junior and won two national championships.

Brunson ended his junior year of high school for Stevenson High School in Lincolnshire, Illinois as one of the top point guards in the country. He was selected as the 2014 Illinois Boys Basketball Gatorade Player of the Year. He was selected to participate in the 2015 McDonald's All-American Boys Game as well as the 2015 Jordan Brand Classic and to represent the Team USA in the Nike Hoop Summit. As a senior, he repeated as the 2015 Illinois Gatorade Player of the Year and earned a third Associated Press All-state recognition (2nd first team). That year, he led Stevenson to the Illinois High School Association (IHSA) Class 4A championship. Following the season, he won Illinois Mr. Basketball. He completed his senior season in the 2014–15 academic year.

Brunson holds the IHSA playoff single-game and the IHSA Class 4A championship game scoring records and set the USA Basketball single-game assist record for the FIBA Americas Under-18 Championship. He earned the MVP of the 2015 FIBA Under-19 World Cup for the gold medal-winning Team USA.

He began his college career as the 2015–16 Big East Conference Preseason Freshman of the Year and was a Big East All-Freshman Team selection following the season. As a starter, he helped the 2015–16 Wildcats win the championship game of the 2016 NCAA Division I men's basketball tournament. As a sophomore, he was a unanimous 2016–17 All-Big East first team selection for the 2016–17 Wildcats. As a junior, he was the National Player of the Year and a Consensus first-team 2018 All-Americans and he helped the 2017–18 Wildcats win the championship game of the 2018 NCAA Division I men's basketball tournament to give Villanova their second National Championship in three years. On July 12, 2022, he signed with the New York Knicks.