The Old Man in the Corner is an unnamed armchair detective who appears in a series of short stories written by Baroness Orczy. He examines and solves crimes while sitting in the corner of a genteel London tea-room in conversation with a female journalist.
Baroness Emma Orczy (; 23 September 1865 – 12 November 1947), usually known as Baroness Orczy (the name under which she was published) or to her family and friends as Emmuska Orczy, was a Hungarian-born British novelist and playwright. She is best known for her series of novels featuring the Scarlet Pimpernel, the alter ego of Sir Percy Blakeney, a wealthy English fop who turns into a quick-thinking escape artist in order to save French aristocrats from "Madame Guillotine" during the French Revolution, establishing the "hero with a secret identity" in popular culture.