Sydney Bonginkosi Nkalanga is a South African former footballer.
Traded to East Bengal late 2005, Nkalanga did well with Mike Okoro up front at the 2005 Federation Cup, but was released by the Red & Yellow Brigade that winter before being loaned to Fransa-Pax and debuting as they scraped past Dempo SC with one point. However, the South African absconded on 6 March 2006 and decide to break off all contact with the club.