Jean-Jacques Nzadi da Conceição (born 3 April 1964, in Kinshasa), more commonly known as J.J.
Conceição or Jean-Jacques, is an Angolan-Portuguese retired professional basketball player.
A 2.02 m (6'7 ?1/2"), 100 kg (220 lbs.) power forward, he represented Angola at the AfroBasket, where he won a record 7 African continental titles.
At the club level, he won 5 Angolan League championship titles with Primeiro de Agosto and 4 Angolan Cups, before moving to Benfica in Portugal, where he won seven Portuguese national championships and three Portuguese Federation Cups.
He also went on to play for CSP Limoges in France, Baloncesto Málaga in Spain, and Portugal Telecom in Portugal.