The New York Times Fiction Best Sellers of 1991
# The New York Times Fiction Best Sellers of 1991

This is a list of adult fiction books that topped The New York Times Fiction Best Seller list in 1991.

| Date | Book | Author |
| - | - | - |
| January 6 | The Plains of Passage | Jean M. Auel |
| January 13 | The Plains of Passage | Jean M. Auel |
| January 20 | The Secret Pilgrim | John le Carré |
| January 27 | The Secret Pilgrim | John le Carré |
| February 3 | Cold Fire | Dean Koontz |
| February 10 | Cold Fire | Dean Koontz |
| February 17 | Cold Fire | Dean Koontz |
| February 24 | Heartbeat | Danielle Steel |
| March 3 | Heartbeat | Danielle Steel |
| March 10 | Heartbeat | Danielle Steel |
| March 17 | Heartbeat | Danielle Steel |
| March 24 | Heartbeat | Danielle Steel |
| March 31 | Heartbeat | Danielle Steel |
| April 7 | Heartbeat | Danielle Steel |
| April 14 | Heartbeat | Danielle Steel |
| April 21 | The Seeress of Kell | David Eddings |
| April 28 | The Seeress of Kell | David Eddings |
| May 5 | The Seeress of Kell | David Eddings |
| May 12 | Loves Music, Loves to Dance | Mary Higgins Clark |
| May 19 | Loves Music, Loves to Dance | Mary Higgins Clark |
| May 26 | Loves Music, Loves to Dance | Mary Higgins Clark |
| June 2 | Loves Music, Loves to Dance | Mary Higgins Clark |
| June 9 | Loves Music, Loves to Dance | Mary Higgins Clark |
| June 16 | Loves Music, Loves to Dance | Mary Higgins Clark |
| June 23 | Oh, the Places You'll Go! | Dr. Seuss |
| June 30 | Heir to the Empire | Timothy Zahn |
| July 7 | The Kitchen God's Wife | Amy Tan |
| July 14 | The Kitchen God's Wife | Amy Tan |
| July 21 | The Kitchen God's Wife | Amy Tan |
| July 28 | The Kitchen God's Wife | Amy Tan |
| August 4 | The Kitchen God's Wife | Amy Tan |
| August 11 | The Kitchen God's Wife | Amy Tan |
| August 18 | The Kitchen God's Wife | Amy Tan |
| August 25 | The Sum of All Fears | Tom Clancy |
| September 1 | The Sum of All Fears | Tom Clancy |
| September 8 | The Sum of All Fears | Tom Clancy |
| September 15 | The Sum of All Fears | Tom Clancy |
| September 22 | The Sum of All Fears | Tom Clancy |
| September 29 | The Sum of All Fears | Tom Clancy |
| October 6 | The Sum of All Fears | Tom Clancy |
| October 13 | Scarlett | Alexandra Ripley |
| October 20 | Scarlett | Alexandra Ripley |
| October 27 | Scarlett | Alexandra Ripley |
| November 3 | Scarlett | Alexandra Ripley |
| November 10 | Scarlett | Alexandra Ripley |
| November 17 | Scarlett | Alexandra Ripley |
| November 24 | Scarlett | Alexandra Ripley |
| December 1 | Scarlett | Alexandra Ripley |
| December 8 | Scarlett | Alexandra Ripley |
| December 15 | Scarlett | Alexandra Ripley |
| December 22 | Scarlett | Alexandra Ripley |
| December 29 | Scarlett | Alexandra Ripley |
