João Baptista N'Tyamba (born 20 March 1968) is an Angolan runner.

He started as a middle-distance runner and competed in the 800 meters at 1988 Summer Olympics.

He then shifted to the longer distances, competing in 10,000 metres at the World Championships in 1997, 1999, and 2001, with a thirteenth place from 1999 as his best finish.

He competed in the marathon at two consecutive Olympic Games, placing seventeenth in 2000 and 53rd in 2004.

The other track and field athletes who have competed at six Olympics are Merlene Ottey, Lia Manoliu, Tessa Sanderson, and Maria Mutola.