Sir Herbert Croft, 5th Baronet (1 November 1751 – 26 April 1816), English author best known for his novel Love and Madness.
Croft was born at Dunster Park, Berkshire, son of the son of Herbert Croft and Elizabeth Young. He matriculated at University College, Oxford, in March 1771, and was subsequently entered at Lincoln's Inn. He was called to the bar, but in 1782 returned to Oxford with a view to preparing for holy orders. In 1786 he received the vicarage of Prittlewell, Essex, but he remained at Oxford for some years accumulating materials for a proposed English dictionary. Croft spent years on this project and he also took on preparation work made by Joseph Priestley. However, despite compiling thousands of entries not found in other dictionaries, the project was finally abandoned because of a failure to find sufficient subscribers. He was twice married, and on the day after his second wedding day he was imprisoned at Exeter for debt.
He then retired to Hamburg, and two years later his library was sold. He had succeeded in 1797 to the baronetcy, but not to the estates, of a distant cousin, Sir John Croft, 4th Baronet. He returned to England in 1800, but went abroad once more in 1802. He lived near Amiens at a house owned by Lady Mary Hamilton, the daughter of Alexander Leslie, 5th Earl of Leven. Later he removed to Paris, where he died on 26 April 1816.
In some of his numerous literary enterprises he had the help of Charles Nodier. Croft wrote the Life of Edward Young inserted in Samuel Johnson's Lives of the Poets.
In 1780 he published Love and Madness, a Story too true, in a series of letters between Parties whose names could perhaps be mentioned were they less known or less lamented. This book, which passed through seven editions, narrates the passion of the soldier-turned-clergyman James Hackman for Martha Ray, mistress of the earl of Sandwich, who was shot by her lover as she was leaving Covent Garden in 1779 (see the Case and Memoirs of the late Rev. Mr James Hackman, 1779).