Greater Anglia is a British train operating company owned as a joint venture by Transport UK Group and Mitsui & Co. It operates the East Anglia franchise, providing the commuter and intercity services from its Central London terminus at London Liverpool Street to Essex, Suffolk, Norfolk and parts of Hertfordshire and Cambridgeshire as well as many regional services throughout the East of England.

The East Anglia franchise is a railway franchise for passenger trains on the Great Eastern Main Line and West Anglia Main Lines in England. It commenced operating in April 2004 when the Anglia and Great Eastern franchises, together with the West Anglia part of the West Anglia Great Northern franchise, were combined to form the Greater Anglia franchise.