St George the Martyr's Church, Truro is a Grade II listed parish church in the Church of England in Truro, Cornwall.
The church was designed by the Rev'd William Haslam. It was consecrated on 5 October 1855 by Henry Phillpotts, Bishop of Exeter
The church was preceded by a temporary church built of wood which was the work of Mr. White, an architect and parishioner; it was opened on 23 April 1848 with a church service well attended by local clergy and lay people.
St George's stands in the Anglo-Catholic tradition of the Church of England. As a traditionalist catholic parish that rejects the ordination of women, it receives alternative episcopal oversight from the Bishop of Oswestry (currently Paul Thomas).
The original organ was rebuilt in 1892 by Brewer and Co of Truro.
The current organ was originally in the Methodist Church in St Columb Major. A specification of the organ can be found on the National Pipe Organ Register.