The New York Times Fiction Best Sellers of 2012
This is a list of adult fiction books that topped The New York Times Fiction Best Seller list in 2012.
The most popular book of the year was Fifty Shades of Grey, by E. L. James with 28 weeks at the top.
| Date | Book | Author |
| January 1 | 11/22/63 | Stephen King |
| January 8 | 11/22/63 | Stephen King |
| January 15 | 77 Shadow Street | Dean Koontz |
| January 22 | Private: #1 Suspect | James Patterson and Maxine Paetro |
| January 29 | Believing the Lie | Elizabeth George |
| February 5 | Private: #1 Suspect | James Patterson and Maxine Paetro |
| February 12 | Taken | Robert Crais |
| February 19 | Home Front | Kristin Hannah |
| February 26 | Kill Shot | Vince Flynn |
| March 4 | Private Games | James Patterson |
| March 11 | Celebrity in Death | J. D. Robb |
| March 18 | Fifty Shades of Grey | E.L. James |
| March 25 | Fifty Shades of Grey | E.L. James |
| April 1 | Fifty Shades of Grey | E.L. James |
| April 8 | Fifty Shades of Grey | E.L. James |
| April 15 | Fifty Shades of Grey | E.L. James |
| April 22 | Fifty Shades of Grey | E.L. James |
| April 29 | Fifty Shades of Grey | E.L. James |
| May 6 | Fifty Shades of Grey | E.L. James |
| May 13 | Fifty Shades of Grey | E.L. James |
| May 20 | Fifty Shades of Grey | E.L. James |
| May 27 | Fifty Shades of Grey | E.L. James |
| June 3 | Fifty Shades of Grey | E.L. James |
| June 10 | Fifty Shades of Grey | E.L. James |
| June 17 | Fifty Shades of Grey | E.L. James |
| June 24 | Fifty Shades of Grey | E.L. James |
| July 1 | Fifty Shades of Grey | E.L. James |
| July 8 | Fifty Shades of Grey | E.L. James |
| July 15 | Fifty Shades of Grey | E.L. James |
| July 22 | Fifty Shades of Grey | E.L. James |
| July 29 | Fifty Shades of Grey | E.L. James |
| August 5 | Fifty Shades of Grey | E.L. James |
| August 12 | Fifty Shades of Grey | E.L. James |
| August 19 | Fifty Shades of Grey | E.L. James |
| August 26 | Fifty Shades of Grey | E.L. James |
| September 2 | Fifty Shades of Grey | E.L. James |
| September 9 | Fifty Shades of Grey | E.L. James |
| September 16 | Fifty Shades of Grey | E.L. James |
| September 23 | Fifty Shades of Grey | E.L. James |
| September 30 | A Wanted Man | Lee Child |
| October 7 | Winter of the World | Ken Follett |
| October 14 | The Casual Vacancy | J.K. Rowling |
| October 21 | Reflected in You | Sylvia Day |
| October 28 | Reflected in You | Sylvia Day |
| November 4 | The Bone Bed | Patricia Cornwell |
| November 11 | The Racketeer | John Grisham |
| November 18 | The Racketeer | John Grisham |
| November 25 | The Perfect Hope | Nora Roberts |
| December 2 | The Last Man | Vince Flynn |
| December 9 | Notorious Nineteen | Janet Evanovich |
| December 16 | The Black Box | Michael Connelly |
| December 23 | Threat Vector | Tom Clancy |
| December 30 | Gone Girl | Gillian Flynn |