Louisa Jane Hamilton, Duchess of Abercorn was a member of the British aristocracy. She was the half-sister of Prime Minister John Russell, 1st Earl Russell.

James Hamilton, 1st Duke of Abercorn,, styled Viscount Hamilton from 1814 to 1818 and The Marquess of Abercorn from 1818 to 1868, was a British Conservative statesman who twice served as Lord Lieutenant of Ireland.