Greivis Josué Vásquez Rodríguez (born January 16, 1987) is a Venezuelan former professional basketball player, who spent six seasons in the NBA.

In his final college season of 2009–10, he was one of three Venezuelans playing in NCAA Division I men's basketball, with the others being David Cubillan of the Marquette Golden Eagles and Gregory Echenique of the Creighton Bluejays.

After an impressive youth career in his country where he also led the Venezuelan U-15 National Team to the FIBA U-15 South American Championship title in 2003, he was selected to participate at the NBA's Basketball Without Borders camp (2004) being a headliner at the event.

At Montrose Christian, Vásquez played under head coach Stu Vetter, and helped the Mustangs post a 43–5 record over his junior and senior seasons.

Vásquez averaged 9.8 points, 4.7 assists and 3.3 rebounds per game during his freshman season, and shooting percentages of 44.4 for field goals, 31.6 for three-pointers and 79.8 for free throws.

[2] Vásquez had per-game averages of 17 points, 6.8 assists and 5.7 rebounds, and shooting percentages of 43.2 for field goals, 30.9 for three-pointers and 78.2 for free throws.

He became the first Terrapin basketball player to ever lead the team in points, rebounds and assists in a single season, and only the sixth to accomplish that task in the ACC.

On February 21, 2009, Vásquez registered a then career-high 35 points, and 11 rebounds and 10 assists—Maryland's third triple-double in history and the first since 1987—in a come-from-behind 88–85 overtime win over North Carolina.

His honors included the 2010 Bob Cousy Award given by the Naismith Memorial Basketball Hall of Fame to the nation's best collegiate point guard, for which he edged out Sherron Collins (Kansas), Scottie Reynolds (Villanova), Jon Scheyer (Duke), Evan Turner (Ohio State) and John Wall (Kentucky).

[10] Vásquez also scored 20 points in Maryland's home win over Duke on Senior Night, and made several critical baskets and assists in the final minutes to secure a victory.

[16] Throughout the regular season of his rookie year, Vásquez received spot minutes and scored in double digits only twice, but he gained extensive playing time in the 2011 NBA Playoffs.

[17] Memphis advanced to meet the four-seeded Oklahoma City Thunder in the Conference Semifinals, where Vásquez faced off with his former Montrose Christian classmate, Kevin Durant.

[23] On December 9, 2013, the Kings traded Vásquez, along with Patrick Patterson, John Salmons, and Chuck Hayes to the Toronto Raptors for Rudy Gay, Quincy Acy, and Aaron Gray.

[27] He made his debut for the Bucks in the team's season opener against the New York Knicks on October 28, recording 15 points, 7 rebounds and 5 assists in a 122–97 loss.

Vásquez made his Senior National Team debut in 2007 during the 2007 FIBA Americas Championship in Las Vegas while being a sophomore at the University of Maryland.