Chamberlain "Champ" Nnaemeka Oguchi (born April 28, 1986) is a former Nigerian-American former professional basketball player.

As a sophomore, Oguchi connected on 40 of 68 three-point attempts during the last month of the season and broke the Pac-10 Tournament record for most 3-point field goals made (14).

For his efforts, he received Pac-10 All-Tournament Team honors as well as the Jesse Lee Nash Most Improved Player Award for the second consecutive season.

Although an early season injury reduced Oguchi's role as a junior, he was an integral part of the 2006–2007 Oregon Ducks team that advanced to the NCAA Elite 8.

[3] After going undrafted in 2009, Oguchi began his professional career with STB Le Havre of the French Pro-A League.

[16] On August 1, 2016, during an exhibition match vs. USA Basketball at the Houston Toyota Center, Oguchi scored a game-high 21 points.

[17] He averaged 16 points in 2 career matchups against USA Basketball teams that featured Kobe Bryant, LeBron James, Carmelo Anthony, and Kevin Durant.

In Nigeria's Group B Olympic preliminary match on August 11, 2016, Oguchi scored a game-high 24 points, netting 7 of 12 3-point attempts in a 87–96 loss to Spain.