David Nganga Kamau (born August 4, 1965, in Nakuru, Kenya) is a former Kenyan professional boxer in the Light Middleweight division who lost only four times in 34 fights.
Kamau represented Kenya at the 1988 Summer Olympics in the light-welterweight category, losing his third fight to Sodnomdarjaagiin Altansükh of Mongolia.
Previously in the competition, Kamau defeated Abidnasir Shahab of Jordan and Martin Ndongo-Ebanga of Cameroon.
The undefeated African lost his first shot at the title to three-division World Champion, Mexican Julio César Chávez.
[3] On June 16, 2000, Kamau lost to three-time world champion, American Antonio Margarito in Fantasy Springs Casino, Indio, California.