The Macavity Award is named for the "mystery cat" of T.S. Eliot (Old Possum's Book of Practical Cats). Each year the members of Mystery Readers International nominate and vote for their favorite mysteries in four categories.
Mystery Readers International website
| Year | Best Novel | Best First Novel | Best Nonfiction |
| 2007 | The Virgin of Small Plains Nancy Pickard | Mr. Clarinet |
Mystery Muses: 100 Classics That Inspire Today's Mystery Writers |
| 2006 | The Lincoln Lawyer Michael Connelly | ImmoralBrian Freeman | Girl Sleuth:Nancy Drew and the Women Who Created Her Melanie Rehak |
| 2005 | Killing of the TinkersKen Bruen | Dating Dead MenHarley Jane Kozak | Forensics for DummiesD.P. Lyle |
| 2004 | House SitterPeter Lovesey | Maisie DobbsJacqueline Winspear | |
| 2003 | Winter and NightS J Rozan | In the Bleak MidwinterJulia Spencer-Fleming | |
| 2002 | FollyLaurie R. King | Open SeasonDavid Ellis | |
| 2001 | Place of ExecutionVal McDermid | Conspiracy of PaperDavid Liss | |
| 2000 | Flower MasterSujata Massey | Inner City BluesPaula L. Woods |