Three of a Kind is a collection of three novellas by James M. Cain, published by Alfred A. Knopf in 1943. Each originally appeared as serials in magazines during the 1930s. The collection includes Double Indemnity, first published in 1936 as a serial for Liberty magazine; Career in C Major, originally entitled "Two Can Sing" when it appeared in The American Magazine in 1938; and The Embezzler, appearing in Liberty as "Money and the Woman", also in 1938.

James Mallahan Cain was an American novelist, journalist and screenwriter. He is widely regarded as a progenitor of the hardboiled school of American crime fiction.