Tajuan Marquis Porter (born March 9, 1988) is an American college basketball player; a junior guard at the University of Oregon. A 5'6" (1.68 m) point guard, Porter is one of the shortest NCAA Division I college basketball players. He was considered one of the top freshmen in the country during the 2006–2007 season. He had his best career game against Portland State. Against the Vikings, he scored 38 points, including 10–12 from three-point field goal range. The 10 three-point field goals shattered the single game Oregon record. His 110 made three-point field goals is an Oregon single-season record, and is good enough for the all-time Pac-10 freshman record. He received only one Division I scholarship offer (Oregon). After the Ducks won the 2007 Pac-10 tournament against the University of Southern California, he was named the tournament's MVP.
Porter had a very strong high school career at Renaissance High School in Michigan (Porter's former Oregon teammate, Malik Hairston, also attended Renaissance High School). He led RHS to two state championships in 2004 to 2006, and a 92–10 record during his four years. As a senior he averaged 26.9 points, 6 rebounds, 5 assists, and 5 steals per game. He was named First team all-state at the end of both his junior and senior campaigns. As a junior, he averaged 19.6 points, 5 rebounds, and 5 assists per game. In one game he had 16 points, 10 rebounds, 10 assists, and 10 steals, giving him a quadruple-double.