London Wasps centre Ayoola Erinle and Worcester captain Pat Sanderson complete the nominees, with the prize to be presented at the Zurich Premiership awards dinner on May 4.
There are four nominees for the O2 director of rugby of the season award with Steve Diamond (Saracens), Warren Gatland (Wasps), Philippe Saint-Andre (Sale) and John Wells (Leicester) on the shortlist.
Some of the Premiership's best newcomers have also recognised in the list of contenders for the Land Rover Discovery of the season award.
Leeds wing Chris Bell, Bath prop Matt Stevens, Newcastle centre Mathew Tait and Leicester pair Harry Ellis and Ollie Smith are all nominated.
Tom Biggs (Leeds), Terry Fanolua (Gloucester), Ugo Monye (Harlequins), Bruce Reihana (Northampton), Tom Varndell (Leicester) and Tait are all listed for the Gillette M3Power try of the season.