List of science fiction and fantasy detectives
This list consists of fictional detectives from science fiction and fantasy stories.
| Detective | Creator | Debut |
| Basil Argyros | Harry Turtledove | Agent of Byzantium |
| Marid Audran | George Alec Effinger | When Gravity Fails |
| Elijah Baley | Isaac Asimov | The Caves of Steel |
| Marty Burns | Jay Russell | Celestial Dogs |
| Colonel Thomas Bushell | Harry Turtledove | The Two Georges |
| Logan "Eyes Only" Cale | James Cameron Charles H. Eglee | Dark Angel |
| Dr. Phil D'Amato | Paul Levinson | The Silk Code |
| Lord Darcy | Randall Garrett | Too Many Magicians |
| H. Seaton Davenport | Isaac Asimov | "The Dust of Death" |
| Rick Deckard | Philip K. Dick | Do Androids Dream of Electric Sheep? |
| Hawk & Fisher | Simon Green | Hawk & Fisher |
| John Constantine | Alan Moore | Saga of the Swamp Thing |
| Harry Dresden | Jim Butcher | Storm Front |
| Miles Flint | Kristine Kathryn Rusch | The Disappeared |
| Garrett P.I. | Glen Cook | Sweet Silver Blues |
| Dirk Gently | Douglas Adams | Dirk Gently's Holistic Detective Agency |
| Gil Hamilton | Larry Niven | ARM |
| Adam Hart | Erwin Neutzsky-Wulff | Adam Harts opdagelser |
| Bernard Jaffe | David O. Russell | I ♥ Huckabees |
| Vivian Jaffe | David O. Russell | I ♥ Huckabees |
| Natalie Lindstrom | Stephen Woodworth | Through Violet Eyes |
| Donald Lydecker | James Cameron Charles H. Eglee | Dark Angel |
| Kline Maxwell | S. Andrew Swann | Dragons of the Cuyahoga |
| Thursday Next | Jasper Fforde | The Eyre Affair |
| R. Daneel Olivaw | Isaac Asimov | The Caves of Steel |
| Nohar Rajasthan | S. Andrew Swann | Forests of the Night |
| Magnus Ridolph | Jack Vance | |
| Sam Space | William F. Nolan | Space for Hire |
| Jack Spratt | Jasper Fforde | The Big Over Easy |
| Wendell Urth | Isaac Asimov | "The Singing Bell" |
| Captain Samuel Vimes | Terry Pratchett | Guards! Guards! |
| Dan Vogelsang | James Cameron Charles H. Eglee | Dark Angel |
| Yusuke Urameshi | Yoshihiro Togashi | Yu Yu Hakusho Volume 1 |
| The PI With No Name | Graham Edwards | "The Wooden Baby" |
| John Taylor | Simon R. Green | Something from the Nightside |
| Sir Kay | Phyllis Ann Karr | The Idylls of the Queen |
| Martin Hel | Robin Wood | Skorpio Magazine |
| Carlisle Hsing | Lawrence Watt-Evans | Nightside City |
| Master Li and Number Ten Ox | Barry Hughart | Bridge of Birds |
| Rachel Morgan | Kim Harrison | |
| Felix, aka the Fox | Assaph Mehr | Murder In Absentia |
| Takechi Lev Kovacs | Richard K. Morgan | Altered Carbon |