The National Basketball Association's Rookie of the Year Award is an annual National Basketball Association (NBA) award given to the top rookie(s) of the regular season. Initiated following the 1952–53 NBA season, it confers the Eddie Gottlieb Trophy, named after the former Philadelphia Warriors head coach. Since the 2022–23 NBA season, winners receive the Wilt Chamberlain Trophy, named after the former Rookie of the Year winner.

Westley Sissel Unseld Sr. was an American professional basketball player, coach and executive. He spent his entire National Basketball Association (NBA) career with the Baltimore/Capital/Washington Bullets. Unseld played college basketball for the Louisville Cardinals and was selected with the second overall pick by the Bullets in the 1968 NBA draft. He was named the NBA Most Valuable Player and NBA Rookie of the Year during his rookie season and joined Wilt Chamberlain as the only two players in NBA history to accomplish the feat. Unseld won an NBA championship with the Bullets in 1978, and the Finals MVP award to go with it. After retiring from playing in 1981, he worked with the Bullets/Wizards as a vice president, head coach, and general manager.