Pauline, Lady Trevelyan (née Paulina Jermyn; 25 January 1816, Hawkedon, Suffolk – 13 May 1866, Neuchâtel, Switzerland) was an English painter, noted for single-handedly making Wallington Hall in Northumberland a centre of High Victorian cultural life, and for enchanting by her intellect and art John Ruskin, Swinburne, Elizabeth Barrett Browning, Robert Browning, Christina Rossetti, Dante Gabriel Rossetti, William Michael Rossetti, Thomas Carlyle, John Everett Millais, and other members of the Pre-Raphaelite Brotherhood. She was married in May 1835 to Sir Walter Calverley Trevelyan, 6th Baronet.