William Anthony Parker Jr. (born 17 May 1982) is a French professional basketball player for the San Antonio Spurs of the National Basketball Association (NBA). The son of a professional basketball player, Parker played for two years in the French basketball league before entering the 2001 NBA draft. He was selected by the San Antonio Spurs with the 28th overall pick in the draft and quickly became their starting point guard. Parker has won four NBA Championships (2003, 2005, 2007, and 2014), all of which were with the Spurs.
With his pace and high field goal percentage, Parker has been named to six NBA All-Star games, three All-NBA Second Teams, and an All-NBA Third Team. He was also the 2007 NBA Finals MVP. A severe injury to his left quadriceps tendon in Game 2 in the second round of the 2017 playoffs ended his season.
Playing for the French national team, Parker was named MVP of EuroBasket 2013 following his team's victory over Lithuania in the gold medal game. He finished as the tournament's top scorer with 19 points per game. In 2015, he became the all-time leading scorer in the EuroBasket competition.