AIRD, Catherine
The Complete Steel (UK) = The Stately Home Murder (US)

ALLINGHAM, Margery
The Beckoning Lady (UK) = The Estate of the Beckoning Lady (US)
Coroner's Pidgin (UK) = Pearls Before Swine (US)
Crime at Black Dudley (UK) = The Black Dudley Murder (US)
Dancers in Mourning (UK) = Who Killed Chloe? (US)
Hide My Eyes (UK) = Tether's End; Ten Were Missing
Look to the Lady (UK) = The Gyrth Chalice Mystery (US)
Sweet Danger (UK) = The Fear Sign (US)
Take Two at Bedtime (UK) = Deadly Duo (US)

ANDERSON, J.R.L.
Redundancy Pay (UK) = Death in the Channel
Death in a High Latitude (UK) = Death in the High Latitude

ASIMOV, Isaac
The Death Dealers (US) = A Whiff of Death (UK)

BABSON, Marian
Death Beside the Seaside (UK) = Death Beside the Sea (US)
Death Swap (UK) = Paws for Alarm (US)
The Multiple Cat = Company of Cats
Miss Petunia's Last Case = Canapes for the Kitties
Murder on Show (UK) = Murder at the Cat Show (US and later UK)
Queue Here for Murder (UK) = Line Up for Murder (US)
A Trail of Ashes (UK) = Whiskers and Smoke (US)
Weekend for Murder (UK) = Murder on a Mystery Tour (US)

BANNISTER, Jo
Burning Desires (UK) = A Taste for Burning (US)
The Mason Codex (UK) = Unlawful Entry (UK)
Sins of the Heart (UK) = Charisma (US)

BARNARD, Robert
Unruly Son (UK) = Death of a Mystery Writer (US)
Posthumous Papers (UK) = Death of a Literary Widow (US)
Mother's Boys (UK) = Death of a Perfect Mother (US)
Sheer Torture (UK) = Death by Sheer Torture (US)
Little Victims (UK) = School for Murder (US)
The Disposal of the Living (UK) = Fete Fatale (US)
Death in Purple Prose (UK) = The Cherry Blossom Corpse (US)

BARR, Nevada
Ill Wind (US) = Mountain of Bones (UK)

BLAKE, Nicholas
Malice in Wonderland (UK) = The Summer Camp Mystery; Malice with Murder
The Case of the Abominable Snowman (UK) = The Corpse in the Snowman
The Whisper in the Gloom (UK) = Catch and Kill
A Tangled Web (UK) = Death and Daisy Bland

BLUNT, Giles
Fields of Grief (UK) = By the Time You Read This (US)

BRANDRETH, Gyles
Oscar Wilde and the Candlelight Murders (UK) = Oscar Wilde and a Death of No Importance (US)

BURLEY, W.J.
Three-toed Pussy (UK) = Wycliffe and the Three-toed Pussy (UK)
To Kill a Cat (UK) = Wycliffe and How To Kill a Cat (UK)
Guilt Edged (UK) = Wycliffe and the Guilt Edged Alibi (UK)
Death in a Salubrious Place (UK) = Wycliffe and Death in a Salubrious Place = = (UK)
Death in Stanley Street (UK) = Wycliffe and Death in Stanley Street (UK)

BUTLER, Gwendoline
Coffin For Pandora (UK) = Olivia (US) (Note: not in the John Coffin series)
A Coffin for the Canary (UK) = Sarsen Place (US)
Coffin in the Black Museum (UK) = Coffin in the Museum of Crime (US)
Death Lives Next Door (UK) = Die and Be Dead

CARNAC, Carol (E.C.R. Lorac)
Upstairs, Downstairs (UK) = Upstairs and Downstairs
The Double Turn (UK) = The Late Miss Trimming
Long Shadows (UK) = Affair at Helen's Court

CASE, John
Trance State (UK) = The Syndrome (US)

CHILD, Lee
The Visitor (UK) = Running Blind (US)

CHRISTIE, Agatha
After the Funeral  (UK) = Funerals are Fatal (US)
Death in the Clouds (UK) = Death in the Air (US)
Destination Unknown  (UK) = So Many Steps to Death (US)
Dumb Witness (UK) = Poirot loses a Client (US)
Five little Pigs (UK) = Murder in Retrospect (US)
4.50 From Paddington (UK) = What Mrs McGillicuddy Saw (US)
Hercule Poirot's Christmas (UK) = Murder for Christmas (US)
Hickory, Dickory Dock (UK ) = Hickory, Dickory Death (US)
The Hollow (UK) = Murder after Hours (US)
Lord Edgware Dies (UK) = Thirteen at Dinner (US)
The Mirror Crack'd From Side to Side (UK) = The Mirror Crack'd (US)
Mrs. McGinty's Dead (UK) = Blood will Tell (US)
The Mousetrap (UK) = Three Blind Mice (US)
Murder in the Mews (UK) = Dead Man's Mirror (US)
Murder is Easy (UK) = Easy to Kill (US)
Murder on the Orient Express (UK) = Murder in the Calais Coach (US)
One, Two, Buckle my Shoe (UK) = The Patriotic Murders (US)
Parker Pyne Investigates (UK) = Mr. Parker Pyne, Detective (US)
Poirot's Early Cases (UK) = Hercule Poirot's Early Cases (US)
The Sittaford Mystery (UK) = Murder at Hazelmoor (US)
Sparkling Cyanide (UK) = Remembered Death (US)
Taken at the Flood (UK) = There is a Tide (US)
Ten Little Niggers (Original UK) = And Then There Were None (Current UK) = Ten Little Indians (US)
They do it with Mirrors (UK) = Murder with Mirrors (US)
The Thirteen Problems (UK) = The Tuesday Club Murders (US)
Three-Act Tragedy (UK) = Murder in Three Acts (US)
Why Didn't they Tell Evans? (UK) = The Boomerang Clue (US)
The following are US-only short story collections:
Double Sin
The Golden Ball
The Regatta Mystery
The Under Dog
(many thanks to Sandra for the Christie information)

CRISPIN, Edmund
The Case of the Gilded Fly (UK) = Obsequies at Oxford
Swan Song (UK) = Dead and Dumb
Frequent Hearses (UK) = Sudden Vengance
The Long Divorce (UK) = A Noose for Her

CROSS, Amanda
Death in a Tenured Position (US) = A Death in the Faculty (UK)

DEXTER, Colin
The collection Morse's Greatest Mystery and Other Stories appears in two forms. The second, which includes an extra story, has the subtitle including As Good as Gold.

DICKINSON, Peter
The Glass-Sided Ant's Nest = Skin Deep

DOMINIC, R.B. (Emma Lathen)
There is No Justice (US) = Murder Out of Court
Unexpected Developments (US) = A Flaw in the System (UK)

DRUMMOND, June
The Boon Companions (UK) = Drop Dead (US)

FITZGERALD, Nigel
The Day of the Adder (UK) = Echo Answers Murder

FOSSUM, Karin
Calling Out For You (UK) = Indian Bride (US)

FRASER, Anthea
The Lily-White Boys (UK) = I'll Sing You Two-O! (US)

GILBERT, Michael
End Game = The Final Throw

GILES, Kenneth
A Picture of Death (UK) = A Provenance of Death (US)

GOSLING, Paula
Loser's Blues = Solo Blues

GREEN, George Dawes
The Caveman's Valentine (US) = The Caveman (UK)

HARE, Cyril
An English Murder (UK) = The Christmas Murder (US)
Best Detective Stories of Cyril Hare (US) = Death among Friends (US)
He Should Have Died Hereafter (UK) = Untimely Death (US)
When the Wind Blows (UK) = The Wind Blows Death (US)
The Yew Tree's Shade (UK) = Death Walks the Woods (US)

HARRIS, Charlaine
Sweet and Deadly (US) = Dead Dog (UK)

HARRIS, Lee
The Yom Kippur Murder (US) = The Atonement Murder (UK)
NOTE: The retitled UK edition appears with the author name Syrrel Leahy

HARROD-EAGLES, CYNTHIA
Dead End (UK) = Grave Music (US)
Necrochip (UK) = Death to Go (US)

HAYDER, Mo
Tokyo (UK) = The Devil of Nanking (US)

HILL, Reginald
Asking for the Moon includes the novella One Small Step, which appeared in hardback under that title, and the novella Pascoe's Ghost and the short story Dalziel's Ghost, which appeared in the collection Pascoe's Ghost.
Death of Dalziel (UK) = Death Comes for the Fat Man (US)
Urn Burial (as by Patrick Ruell) = Beyond the Bone (as by Hill)
See also the listing of authors that changed their name

HILTON, John Buxton
Death of an Alderman (UK) = Dead Man's Path (US)
No Birds Sang (UK) = Target of Suspicion (US)
The Anathema Stone (UK) = Fatal Curtain (US)
Surrender Value (UK) = Twice Dead (US)
The Asking Price (UK) = Ransom Game (US)
The Hobbema Prospect (UK) = Cradle of Crime (US)
Passion in the Peak (UK) = Holiday for Murder (US)
The Innocents at Home (UK) = Lesson in Murder (US)

HOAG, Tami
Dead Sky (UK) = Prior Bad Acts (US)

HOLT, Hazel
Dead and Buried (UK) = Mrs. Malory and Death Among Friends (US)
Death of a Dean (UK) = Mrs. Malory: Death of a Dean (US)
Gone Away (UK) = Mrs. Malory Investigates (US)
Leonora (UK) = Mrs. Malory and Death By Water (US)
Murder on Campus (UK) = Mrs. Malory: Detective in Residence (US)
The Only Good Lawyer (UK) = Mrs. Malory and the Only Good Lawyer (US)
The Shortest Journey (UK) = Mrs. Malory's Shortest Journey (US)
Superfluous Death (UK) = Mrs. Malory Wonders Why (US)
An Uncertain Death (UK) = Mrs. Malory and the Festival Murder (US)

NOTES: 1. The Cruelest Month was not retitled in the US. 2. The US paperback edition of Mrs Malory: Death Among Friends claims to be its first publication. I don't know if it has been published in the UK and what the title there is.(DW)

HUNTER, Alan
Gently North-West (UK) = Gently in the Highlands
Gently in Trees (UK) = Gently Through the Woods (US)
Fields of Heather (UK) = Death on the Heath (US)
Amorous Leander (UK) = Death on the Broadlands

HUXLEY, Elspeth
Death of an Aryan (UK) = The African Poison Murders (UK)

INDRIDASON, Arnaldur
Jar City (original title) = Tainted Blood (reprint title)

KEMP, Sarah
Goodbye Pussy (UK) = Over the Edge (UK)

KENYON, Michael
The Whole Hog = Secret of series 3

KING, Laurie R.
Birth of a New Moon (UK) = A Darker Place (US)

LANGTON, Jane
The Transcendental Murder (US) = The Minuteman Murder (US)

LARSSON, Asa
Savage Altar (UK) = Sun Storm (US)

LEON, Donna
Acqua Alta (UK) = Death in High Water (US)
The Anonymous Venetian (UK) = Dressed for Death (US)
Death of Faith (UK) = Quietly in their Sleep (US)
Venetian Reckoning (UK) = Death and Judgement (US)

LORAC, E.C.R.
Policemen in the Precinct (UK) = And Then Put Out the Light
Murder in the Mill-Race (UK) = Speak Justly of the Dead
Crook O'Lune (UK) = Shepherd's Crook
The Theft of the Iron Dogs (UK) = Murderer's Mistake
Death Before Dinner (UK) = A Screen for Murder
Part for a Poisoner (UK) = Place for a Poisoner
Murder of a Martinet (UK) = I Could Murder Her
Death in Triplicate (UK) = People Will Talk
Dishonour Among Thieves (UK) = The Last Escape

McCRUMB, Sharyn
If I Ever Return, Pretty Peggy O (US) = If I Ever Return

McGOWN, Jill
Births, Deaths & Marriages (UK) = Death in the Family (US)
Gone to Her Death (UK) = Death of a Dancer (US)
Redemption (UK) = Murder at the Old Vicarage (US)

MARSH, Ngaio
Death at the Dolphin (UK) = Killer Dolphin
Off with His Head (UK) = Death of a Fool
Opening Night (UK) = Night at the Vulcan
Spinsters in Jeopardy (UK) = The Bride of Death
Surfeit of Lamphreys (UK) = Death of a Peer
Swing, Brother, Swing (UK) = A Wreath for Rivera

MELVILLE, Jennie
A New Kind of Killer, An Old Kind of Death = A New Kind of Killer
Footsteps in the Blood (UK) = Making Good Blood (US)

MITCHELL, Kay
A Strange Desire (UK) = Roots of Evil (US)

MOLONEY, Susie
362 Belisle St (UK) = The Dwelling (US)

MONTANARI, Richard
Broken Angels (UK) = Merciless (US)

MOYES, Patricia
Who Saw Her Die? (UK) = Many Deadly Returns (US)

NORMAN, Geoffrey
Deep Pursuit (UK) = Deep End (US)

O'CONNELL, Carol
Dead Famous (US) = Jury Must Die (UK)
Stone Angel (US) = Flight of the Stone Angel (UK )

PAGE, Emma
A Fortnight by the Sea (UK) = Add A Pinch of Cyanide (US)

PARETSKY, Sara
Blood Shot (US) = Toxic Shock (UK)
Windy City Blues (US) = V.I. For Short (UK)

PARKER, Robert B.
Hundred Dollar Baby (US) = Dream Girl (UK)

PEARCE, Michael
The Mamur Zapt and The Camel of Destruction (UK) = The Camel of Destruction (UK)

PENN, John
Deceitful Death (UK) = Stag Dinner Death (US)
Notice of Death (UK) = An Ad for Murder (US)

PENNY, Louise
Dead Cold (UK) = A Fatal Grace (US)

PERRY, Anne
Whited Sepulchres (UK) = A Breach of Promise (US)

PETERS, Ellis
A Nice Derangement of Epitaphs (UK) = Who Lies here?
The Will and the Deed (UK) = Where There's a Will

PICKARD, Nancy
Bum Steer (US) = Cross Bones (UK)

RADLEY, Sheila
Death and the Maiden (UK) = Death in the Morning
Blood on the Happy Highway (UK) = The Quiet Road to Death

RANKIN, Ian
Wolfman (UK) = Tooth and Nail (US)

REDMOND, Patrick
Wishing Game (UK) = Something Dangerous (US)

ROBINSON, Peter
Dead Right UK) = Blood at the Root (US)
Dry Bones That Dream (UK) = Final Account (US)
The Summer That Never Was (UK) = Close to Home (US)

SANDFORD, John
Winter Prey (UK) = Iceman (US)

SAYERS, Dorothy
Unnatural Death (UK) = The Dawson Pedigree
Five Red Herrings (UK) = Suspicious Characters

SAYLOR, Steven
A Twist at the End (US) = Honor the Dead (UK)

SEDLEY, Kate
The Hanged Man (UK) = Weaver's Tale (US)

SLAUGHTER, Karin
Skin Privilege (UK) = Beyond Reach (US)

SMITH, Carol
Double Exposure (UK) = Charmed Circle (US)

TALLIS, Frank
Mortal Mischief (UK) = A Death in Vienna (US)

TELUSHKIN, Joseph
The Unorthodox Murder of Rabbi Wahl (US) = The Unorthodox Murder of Rabbi Moss (UK)

THOMSON, June
Deadly Relations (UK) = The Habit of Loving (US)

WENTWORTH, Patricia
Danger Point = In the Balance
Miss Silver Intervenes = Miss Silver Deals With Death
Spotlight (UK) = Wicked Uncle (US)
The Traveller Returns (UK) = She Came Back

WRIGHT, Eric
Man Who Changed His Name = A Single Death