Christian Mathias Cullen (born 12 February 1976 in Paraparaumu, New Zealand) is a former New Zealand rugby union footballer. He played most of his rugby at fullback for New Zealand (the All Blacks), for the Hurricanes in the Super 12, and for Manawatu, Wellington and later Munster at provincial level. He was nicknamed the Paekakariki Express and was considered to be one of the most potent running fullbacks rugby has ever seen.