Lord Peter Death Bredon Wimsey is the fictional protagonist in a series of detective novels and short stories by Dorothy L. Sayers. A dilettante who solves mysteries for his own amusement, Wimsey is an archetype for the British gentleman detective. He is often assisted by his valet and former batman, Mervyn Bunter; by his good friend and later brother-in-law, police detective Charles Parker; and, in a few books, by Harriet Vane, who becomes his wife.

Dorothy Leigh Sayers was an English crime novelist, playwright, translator and critic.