Robert Nunn is a defensive line coach - American Football.

Robert Nunn or Bobby Nunn may also refer to:

• Bobby Nunn (Doowop musician) (1925–1986), Ulysses Nunn, American singer with The Robins and The Coasters
• Bobby Nunn (R&B musician), American R&B producer, songwriter and vocalist
• Robert Nunn (songwriter) (1808-1853), Tyneside singer and songwriter
• Robert Nunn (umpire), see List of Australian Football League umpires