The Notorious Lone Wolf is a 1946 American mystery film directed by D. Ross Lederman and starring Gerald Mohr, Janis Carter and Eric Blore. It is the twelfth Lone Wolf film produced by Columbia Pictures. The picture features Mohr in his inaugural performance as the protagonist detective Lone Wolf alongside Janis Carter and Ian Wolfe as Adam Wainwright, the film's antagonist. The screenplay was written by Martin Berkeley, Edward Dein, and William J. Bowers.

Gerald Mohr was an American radio, film, and television character actor and frequent leading man, who appeared in more than 500 radio plays, 73 films, and over 100 television shows.