Wilbur Donald Wakamatsu (born February 22, 1963) is an American former professional baseball player, scout, coach, manager, and current Bench Coach of the Texas Rangers. Wakamatsu was drafted in the 11th round of the 1985 Major League Baseball draft by the Cincinnati Reds. He played as a catcher in Major League Baseball for the Chicago White Sox. He was hired as bench coach of the Kansas City Royals for the 2014 season. He was the manager of the Seattle Mariners for the 2009 season, as well as the majority of the 2010 season.
On November 19, 2008, he was named the manager of the Seattle Mariners, replacing interim manager Jim Riggleman, and becoming the first Asian-American manager in the majors.
On April 6, 2009, Wakamatsu won his managerial debut as the Mariners beat the Minnesota Twins 6–1 on Opening Day.