|Height||6 ft 9 in (2.06 m)|
|Weight||220 lb (100 kg)|
|Birthdate||September 3, 1985 (1985-09-03) (age 23)|
Maarten "Maarty" Arthur Leunen (b. September 3, 1985) is a power forward with the Houston Rockets. Formerly at the University of Oregon, Leunen was drafted with the 54th overall pick in the 2008 NBA Draft by the Rockets. Leunen averaged 9.9 points per game and 7.0 rebounds per game for his college career.
Prior to arriving at the University of Oregon, Leunen starred at Redmond High School (Oregon) in Redmond, Oregon. Leunen led Redmond to the state championship in 2003, where they beat Hillsboro High School 50-47 at Portland's Memorial Coliseum. In 2004 he led Redmond to the state championship game but the team fell short, losing to South Salem High School 54-43 at Eugene's McArthur Court. Leunen was named Gatorade state player of the year in 2004. Rated as the 14th best Power forward (basketball) prospect by Rivals.com, Leunen chose the University of Oregon over offers from UCLA and Gonzaga University as well as many others.
After solid contributions as a true freshman and sophomore for the Ducks, Leunen became one of the most important pieces to Oregon's 2006–2007 campaign. In the Ducks' four-guard offense, Leunen often found himself matched up against bigger, taller opponents. His post defense, rebounding and offensive versatility (namely his ability to shoot the three and run the floor) created problems for opponents all season long. Leunen's junior season performance garnered him All-Pac-10 Honorable Mention status.
In the summer of 2008, Leunen signed with the Turkish Basketball League team Darüşşafaka, which is associated with the big Turkish club Efes Pilsen. The Houston Rockets retain the right to sign Leunen in the next offseason.
Leunen's former Oregon teammate, Aaron Brooks (basketball), also plays for the Houston Rockets, having been drafted as the 26th overall pick in the 2007 NBA Draft.