Craig Alan Newby (born 27 July 1979) is a former New Zealand rugby union player. Newby spent the bulk of his career in New Zealand, playing for Otago, the Highlanders, North Harbour and the Blues. He had a short stint with Newcastle Falcons in 2002. He made three appearances for New Zealand before moving to England in 2008 to play for Leicester Tigers. At the end of his first season at Leicester he helped them defeat London Irish to win the Premiership final. The following year Leicester retained the Premiership.