Omar-Sharif Cook (Serbian: Omar-Šarif Kuk / Омар-Шариф Кук; born January 28, 1982) is an American-Montenegrin professional basketball coach and former player currently working as an assistant coach for the Cleveland Cavaliers of the National Basketball Association (NBA).

He also broke Mark Jackson's record for the most assists in a game for a St. John's player with 17, against Stony Brook University.

He was immediately traded to the Denver Nuggets, but failed to make the team, reportedly because of his inability to shoot the ball effectively.

He also briefly led the NBA D-League in steals and assists in the 2004–05 season, while playing with the Fayetteville Patriots.

[4] In December 2012, after Milano was eliminated from the Euroleague, Cook signed with Caja Laboral until the end of the season.

[15] In May 2008, Cook received Montenegrin citizenship, thus applying to represent Montenegro's national basketball team.