David Riolo (born 20 April 1972) is a former Italy international rugby league footballer who played in the 1990s for Illawarra and Parramatta.
Riolo played the majority of his career with the Illawarra Steelers, his hometown club, before retiring with the Parramatta Eels in 1998.
Early in his player management career, Riolo cut his teeth working with prominent internationals Jason Cayless, Craig Fitzgibbon, Andrew Ryan and Michael Vella.
Most notably, Riolo has shaped the career of multi-sport athlete Karmichael Hunt, successfully negotiating cross-code moves from the Brisbane Broncos (NRL) to Biarritz Olympique in France (Top 14 Rugby Union), and then to the Gold Coast Suns (AFL) back in Australia.
On 26 April 2012, Riolo was banned for 6 months by the NRL over his actions in the Melbourne Storm salary cap affair.