Men's basketball
Representing Dominican Republic
FIBA Americas Championship
	2011 Mar del Plata
Centrobasket
	2010 Santo Domingo
Representing United States
FIBA Americas U20 Championship
	2004 Halifax

Charlie Alexander Villanueva (born August 24, 1984) is a Dominican-American professional basketball player who last played for the Dallas Mavericks of the National Basketball Association (NBA).

The son of immigrants from the Dominican Republic, Villanueva was raised in Elmhurst, Queens, New York. He was drafted at the age of 20 with the seventh overall pick in the 2005 NBA draft by the Toronto Raptors. He also holds Dominican citizenship and has represented the Dominican Republic national basketball team in international competition.

During his freshman year, Villanueva attended Newtown High School in Queens, New York, where he was a teammate of future NBA player Smush Parker. He spent his next three years at Blair Academy in Blairstown, New Jersey, where he played with another future NBA player, Luol Deng. Villanueva received All-American honors as a senior and was named New Jersey Co-Player of the Year. He entered the 2003 NBA draft, but withdrew his eligibility so he could play college basketball for the University of Connecticut.

Considered a five-star recruit by Rivals.com, Villanueva was listed as the No. 2 power forward and the No. 5 player in the nation in 2003.

Villanueva originally gave a verbal commitment to play for the University of Illinois, but after Bill Self left the Illini for the University of Kansas, Villanueva withdrew his commitment. He considered following Self to the Jayhawks, but instead opted to play for the University of Connecticut.