William Nwadinobi Okpara (born 7 May 1968) is a Nigerian former professional footballer who played as a goalkeeper.
Having started his career with ACB Lagos, he spent more than a decade with South African side Orlando Pirates.
Okpara was the club's first choice goalkeeper from 1990 to 2002, losing his place to Congolese goalkeeper Michel Babale during 2002–03 season, then becoming an understudy to Thabang Radebe and Francis Chansa before retiring in 2005.
He holds the record of Pirates' appearances with 375 matches, and is also the club's longest serving player.
[4] He made his debut for the Nigeria national team in 1996 and was selected for the 1998 FIFA World Cup squad.