Morris "Mo" Nunn (born 27 September 1938) is a motor racing team owner and engineer from England. He founded and ran the Ensign Formula One team in the late 1970s and early 80s, and later worked for Chip Ganassi's highly successful Champ Car team, before founding Mo Nunn Racing for the 2000 season. At the urging of Mercedes Benz Nunn again started a team for the 2000 season.The team was sponsored by WorldCom and Hollywood (tobacco) and initially hired Tony Kanaan and Felipe Giaffone.