- Patricia Hagan
- Carolyn Haines (non-series)
- Kathryn Miller Haines
- The War Against Miss Winter
- The Winter of Her Discontent
- Daniel Hall
- Kemp: The Road to Crecy
- Kemp: Passage At Arms
- John Hall (Holmes Series)
- Sherlock Holmes and the Boulevard Assassin
- Sherlock Holmes and the Disgraced Inspector
- The Travels of Sherlock Holmes
- Sherlock Holmes and the Telephone Murder Mystery
- Sherlock Holmes and the Hammerford Will
- Sherlock Holmes and the Abbey School Mystery
- Sherlock Holmes and the Adler Papers
- John Hall (Martin Byrd)
- John Hall (Freddie Darnborough)
- Oakley M. Hall
- Ambrose Bierce and the Queen of Spades
- Ambrose Bierce and the Death of Kings
- Ambrose Bierce & the One-Eyed Jacks
- Ambrose Bierce and the Trey of Pearls
- Ambrose Bierce and the Ace of Shoots
- Robert Lee Hall (Ben Franklin Series)
- Benjamin Franklin Takes the Case
- Benjamin Franklin and a Case of Christmas Murder
- Murder at Drury Lane
- Benjamin Franklin and a Case of Artful Murder
- Murder by the Waters
- London Blood
- Robert Lee Hall (Sherlock Holmes Pastiches)
- Exit Sherlock Holmes
- The King Edward Plot
- Robert Lee Hall (William Hearst standalone)
- Winifred Halsey
- Murder in the Pitti Palace (amazon short)
- Barbara Hambly (Benjamin January Series)
- A Free Man of Color
- Fever Season
- Graveyard Dust
- Sold Down the River
- Die Upon A Kiss
- Wet Grave
- Days of the Dead
- Dead Water
- Barbara Hambly (Roman standalone)
- Search the Seven Hills (aka The Quirinal Hill Affair)
- Sylvian Hamilton
- The Bone Pedlar
- The Pendragon Banner
- The Glee Maiden
- June Hampson
- Trust Nobody
- Broken Bodies
- Damaged Goods
- Lauren Haney
- Right Hand of Amon
- A Face Turned Backward
- A Vile Justice
- Curse of Silence
- A Place of Darkness
- A Cruel Deceit
- Flesh of the God
- A Path of Shadows
- Paul Harding aka Paul Doherty (series continues under Doherty)
- The Nightingale Gallery
- The House of the Red Slayer
- Murder Most Holy
- The Anger of God
- By Murder's Bright Light
- The House of Crows
- The Assassin's Riddle
- Michael Hardwick
- Man Who Was Sherlock Holmes
- Private Life of Sherlock Holmes
- Prisoner of the Devil
- Sherlock Holmes My Life and Crimes
- The Private Life of Dr. Watson
- The Revenge of the Hound
- Nightbone
- Daniel Elton Harmon
- The Chalk Town Train & Other Tales
- Karen Harper
- The Poison Garden
- The Tidal Poole
- The Twylight Tower
- The Queen's Cure
- The Thorne Maze
- The Queene's Christmas
- The Fyre Mirror
- The Fatal Fashione
- The Hooded Hawke
- Tom Harper
- Mosaic of Shadows
- Knights of the Cross
- Siege of Heaven
- C.S. Harris
- What Angels Fear
- When Gods Die
- Why Mermaids Sing
- Where Serpents Sleep
- Fred Harris
- Coyote Revenge
- Easy Pickin's
- Jana Harris
- Robert Harris
- Cora Harrison
- My Lady Judge
- Michaelmas Tribute
- Ray Harrison
- Why Kill Arthur Potter (or French Ordinary Murder)
- Death of an Honourable Member
- Death of a Dancing Lady
- Deathwatch
- Counterfeit of Murder
- Season for Death
- Harvest of Death
- Tincture of Death
- Sphere of Death
- Patently Murder
- Murder in Petticoat Square
- Akin to Murder
- Hallmark of Murder
- Murder by Design
- Facets of Murders
- Draught of Death
- Edmund Hastie
- Sherlock Holmes and the Disappearing Prince
- Patrick Hatten
- George Egon Hatvary
- The Murder of Edgar Allan Poe
- Diana Haviland
- Simon Hawke
- A Mystery of Errors
- The Slaying of the Shrew
- Much Ado About Murder
- Ellen Hawkes & Peter Manso
- Channing Hayden
- The Vampyre in Satan's Soup (Amazon short)
- A Tale of Two Revolutions (Amazon short)
- Judith Healey
- Peter J. Heck
- Death on the Mississippi
- A Connecticut Yankee in Criminal Court
- The Prince and the Prosecutor
- Guilty Abroad
- Mysterious Strangler
- Tom's Lawyer
- Keith Heller
- Man's Illegal Life
- Man's Loving Family
- Man's Storm
- William Heffernan
- Robert Hendrick
- Jane Heritage
- George Herman
- A Comedy of Murders
- The Tears of the Madonna
- The Florentine Mourners
- The Toys of War
- Evelyn Hervey (aka H.R.F. Keating)
- The Governess
- The Man of Gold
- Into the Valley of Death
- Frederick Highland
- Suzette A. Hill
- A Load of Old Bones
- Bones in the Belfry
- Bone Idle (forthcoming)
- Kathleen Hills
- Past Imperfect
- Hunter's Dance
- Witch Cradle
- The Kingdom Where Nobody Dies
- John Buxton Hilton
- Rescue from the Rose
- Gamekeeper's Gallows
- Dead-Nettle
- Mr Fred (USA title: Mr Fred's Leap)
- The Quiet Stranger
- Slickensides
- William Hjortsberg (both standalones)
- Edward Hoch (Ben Snow Stories)
- The Ripper of Storyville and Other Ben Snow Tales
- Edward Hoch (Dr. Sam Hawthorne Series)
- Diagnosis: Impossible - The Problems of Dr. Sam Hawthorne
- More Things Impossible: The Second Casebook of Dr. Sam Hawthorne [forthcoming]
- Steve Hockensmith
- Holmes on the Range
- On the Wrong Track
- The Black Dove
- Dear Mr. Holmes online short story
- Ken Hodgson
- Season of the Burning Souls
- Craig Holden
- David Holland
- The Devil in Bellminster
- The Devil's Acre
- The Devil's Game
- Tom Holm
- Sheri Holman
- Rupert Holmes 1
- Rupert Holmes 2
- Donald Honig
- The Sword of General Englund
- The Ghost Of Major Pryor
- Ronald Hopkins
- Terry Hoover
- David R. Horwitz
- William Horwood and Helen Rappaport
- Dark Hearts of Chicago (reissued in 2008, with revisions, as City of Dark Hearts by James Conan)
- Sydney Hosier
- Elementary, Mrs. Hudson
- Murder, Mrs Hudson
- Most Baffling, Mrs. Hudson
- The Game's Afoot, Mrs Hudson
- C. C. Humphries
- Jack Absolute
- The Blooding of Jack Absolute (prequel)
- Absolute Honor
- Evan Hunter
- Janet Hutchings, editor
- Once Upon a Crime
- Once Upon a Crime II
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