St Thomas' Church is in Marton Street, Lancaster, Lancashire, England.

[4][5] The land was given by George Marton of Capernwray Hall, and Elizabeth Salisbury made an endowment of £1,100.

[6] The foundation stone was laid on 3 March 1840, the church opened for worship on 14 April 1841, and it was consecrated on 14 June by Rt Revd John Bird Sumner, Bishop of Chester.

[5] In 1852–53 Sharpe's successor, E. G. Paley, added the northeast steeple and the chancel in a similar architectural style.

[8] The authors of the Buildings of England series state that the church has "a grand approach up steps with imposing gatepiers".

[3] The stained glass in the east window is by William Warrington, and the tiles on the chancel floor and in the reredos are by Mintons.