Alvin Cyrrale Robertson (born July 22, 1962) is a retired American basketball player who played in the National Basketball Association from 1984 to 1993, and for one final season in 1995–96. Robertson holds the record for the most steals per game played, averaging 2.71 steals per game for his career. He is also one of four players in NBA history to have recorded a quadruple double.

Best known for his defense, the 6'3" Robertson played for ten years after being selected by the San Antonio Spurs with the seventh pick in the 1984 NBA draft out of Crowder Junior College and the University of Arkansas. After five seasons with the Spurs, He finished out his career with the Milwaukee Bucks, the Detroit Pistons and the Toronto Raptors. He also was a member of 1984 U.S. Olympic gold-medal team.

In 1986, Robertson became the inaugural winner of the NBA Most Improved Player Award. This also marked the first of four National Basketball Association All-Star Game appearances for the guard (the others coming in 1987, 1988, and 1991). He also won the NBA Defensive Player of the Year Award in 1986, and led the league in steals in 1986, 1987 and 1991. Robertson still holds the top career steals-per-game average in the NBA, with 2.71 per contest over 779 career games.

Robertson twice led the league in steals. In 1985–86 he averaged a league-leading 3.7 steals per game, a major factor in his earning the Defensive Player of the Year honor and being selected second-team All-NBA, one of only seven players in Spurs' history to have been selected first, second or third-team All-NBA. He was a four-time All-Star.

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