Kevin Alvin Willis (born September 6, 1962) is a retired American professional basketball player who last played for the Dallas Mavericks in the NBA. He is a 7-foot power forward/center. During the 2004-05 season, Willis was the oldest player in the league at age 42, and he would continue to be until his retirement at the conclusion of the 2006-07 season at the age of 44.
Born in Los Angeles, Willis graduated from Pershing High School in Detroit and joined the basketball team in his junior year. Willis played competitively at Jackson College for his freshman season and transferred to Michigan State University, where he would play three seasons  as a fashion and textiles major. He was selected in the 1984 NBA Draft by the Atlanta Hawks. He played with the Hawks for nine seasons (plus two games of a tenth season) until 1994. Willis teamed with Dominique Wilkins, Spud Webb, and Doc Rivers to often guide the Hawks to Playoffs appearances as well as providing a fierce rebounding presence in the post. Near the end of his stint with the Hawks, he and Wilkins were both made team captains. Willis was traded to the Miami Heat in 1994. Since then he has played with the Golden State Warriors, two separate stints with the Houston Rockets, the Denver Nuggets, the Toronto Raptors and the San Antonio Spurs. It was in 2003 with the Spurs that he finally won an NBA Championship ring. Willis is one of 15 players in NBA history with over 16,000 career points and 11,000 career rebounds. He was named to the NBA Eastern Conference All-Star Team in 1992, when he finished the season with a career-high average of 15.5 rebounds a game.
Willis ended his playing career after the 2007 season, returning to his clothing business, Willis & Walker. The Atlanta-based company, which specializes in custom wear for big and tall men, was founded in 1988 by Willis and former Michigan State teammate Ralph Walker.