Portrait of Lady Caroline Montagu is an 1831 portrait painting by the English artist George Hayter depicting the British aristocrat Lady Caroline Montagu.

She was the daughter of the Duke of Manchester and the wife of the Tory Member of Parliament John Calcraft.

She is portrayed in Byronic style as Haidée from the poem Don Juan by Lord Byron, with her costume combining fashionable British evening dress and a headdress of Neapolitan peasant costume.

[1] Hayter was from a family of painters and made his breakthrough with his The Trial of Queen Caroline in 1823 during the later Regency era.

[2] The painting was exhibited at the Paris Salon of 1831 where he was considered one of three artists competing to be the successor to Thomas Lawrence.