Ewan Christian (1814–1895) was a British architect. He is most frequently noted for the restorations of Southwell Minster and Carlisle Cathedral, and the design of the National Portrait Gallery. He was Architect to the Ecclesiastical Commissioners from 1851 to 1895. Christian was elected A RIBA in 1840, FRIBA in 1850, RIBA President 1884–1886 and was awarded the Royal Gold Medal in 1887.