Nadezhda Wijenberg (born Nadezhda Alexeevna Ilyina on 2 April 1964 in Kanash) is a long-distance runner from Russia, who got the Dutch nationality in 1999 by marrying her coach Ger Wijenberg from the Netherlands.

Nadezhda "Nadja" Wijenberg lives in Schinnen, Limburg, and ran her personal best (2:28:45) in the Eindhoven Marathon, on 10 October 1999. That performance gave her a ticket for the 2000 Summer Olympics in Sydney, Australia, where she finished in 22nd place. She is a one-time national champion in the women's 5000 metres. She won the Lisbon Half Marathon 1993 ^[1] and the Parelloop 10K in race in the Netherlands in 1997.^[2]