| Title | Publisher | Date | Issue Points - Notes |
| The Breed of the Beverleys | Odhams Press | 1921 | |
| Love, The Sportsman | Hodder & Stoughton | 1923 | Reissued in 1934 by Collins as The Man with Two Faces |
| The Mystery of No. I | As Above | 1925 | US: 1926 Doran as The Order of the Octopus |
| False- Face | As Above | 1926 | US: 1926 Doran |
| The House of Secrets | As Above | 1926 | American: 1927 Doran |
| The Black Heart | Hodder & Stoughton | 1927 | USA: 1928 Doubleday |
| In the Dark | As Above | 1927 | US: 1928 Doubleday as as A Life for Sale |
| Vivanti | As Above | 1927 | American: 1927 Doran |
| Chipstead of the Lone Hand | Hodder & Stoughton | 1928 | US: 1929 Holt |
| The 13th Hour. | Readers' Library | 1928 | |
| The Curse of Doone | Hodder & Stoughton | 1928 | US: 1930 Mystery League |
| Miss Mystery | As Above | 1928 | US: 1935 Little Brown |
| The Secret Service Man | As Above | 1929 | US: 1930 Knopf |
| Heart Cut Diamond | As Above | 1929 | |
| The Worst Man in the World | As Above | 1929 | |
| Lady of the Night | Hodder & Stoughton | 1929 | US: 1930 Knopf |
| Peril ! | Mystery League | 1930 | UK: 1931 Hodder as Cavalier of Chance |
| Checkmate | Hodder & Stoughton | 1930 | |
| The Screaming Skull | As Above | 1930 | |
| Danger's Bright Eyes | Hodder & Stoughton | 1930 | US: 1932 Harper |
| The Evil Chateau | Hodder & Stoughton | 1930 | US: 1931 Knopf |
| The Murder Mask | Readers' Library | 1930 | |
| Adventure Calling ! | Hodder & Stoughton | 1931 | |
| The Man Who Walked with Death | Knopf | 1931 | UK: 1942 H & S |
| Princess after Dark | Hodder & Stoughton | 1931 | US: 1932 Mystery League as The False Purple |
| The Spy | Hodder & Stoughton | 1931 | |
| The Mystery Mission | H&S | 1931 | |
| The Temptation of Mary Gordon | Newnes | 1931 | |
| Wolves of the Night | Readers Library | 1931 | |
| Vivanti Returns | Hodder & Stoughton | 1931 | |
| Gentleman in Waiting | Ernest Benn | 1932 | |
| High Stakes | Collins | 1932 | US: 1935 Little Brown |
| Horror's Head | Hodder & Stoughton | 1932 | |
| My Lady Dangerous | Hodder & Stoughton | 1932 | US: 1933 Harper |
| Tiger Standish | John Long | 1932 | USA: 1933 Doubleday |
| The Formula | John Long | 1933 | US: 1934 Little Brown as The Charlatan |
| Harlequin of Death | John Long | 1933 | US: 1933 Brown |
| Huntress of Death | Hodder & Stoughton | 1933 | |
| The Menace | Collins | 1933 | US: 1933 Brown |
| The Man Who Shook the Earth | Hutchinson | 1933 | |
| Beauty and the Policeman | Ditto | 1933 | |
| The Man from Scotland Yard | Hutchinson | 1934 | |
| The Secret Agent | Collins | 1934 | US: 1934 Brown |
| S.O.S. | Hutchinson | 1934 | |
| The Prince of Plunder | Hodder & Stoughton | 1934 | US: 1934 Brown |
| Tiger Standish Comes Back | Hutchinson | 1934 | |
| Dying to Live | Ditto | 1935 | |
| The Lessing Murder Case | Collins | 1935 | |
| Lord of Terror | Collins | 1935 | US: 1937 Curl |
| The Mystery of the Seven Cafes | H&S | 1935 | Blue cloth, black titles. Jacket 3/6 |
| The House in Greek Street | H&S | 1935 | |
| The Vampire | Hutchinson | 1935 | US: 1974 Bookfinger |
| The Stroke Sinister | Ditto | 1935 | |
| Death at Court Lady | Collins | 1936 | |
| The Grim Game | Collins | 1936 | US: 1936 Brown |
| The Trailer | Collins | 1936 | As Above |
| The Hidden Hand | As Above | 1937 | |
| Instruments of Darkness | Hodder & Stoughton | 1937 | |
| They Called Him Nighthawk | As Above | 1937 | |
| The Destroyer and The Red-Haired Death | As Above | 1938 | |
| The Evil Messenger | As Above | 1938 | |
| Dark Journey | As Above | 1938 | |
| Knaves & Co | Collins | 1938 | |
| A Gentleman for the Gallows | Hodder & Stoughton | 1938 | US: 1938 Curl |
| The Phantom Forward | As Above | 1939 | |
| Terror on Tip-Toe | As Above | 1939 | |
| Tiger Standish Takes the Field | As Above | 1939 | |
| Here Is an SOS | As Above | 1939 | |
| The Man Who Died Twice | As Above | 1939 | |
| The Enemy Within the Gales | As Above | 1940 | |
| The Return of Nighthawk | As Above | 1940 | |
| Tiger Standish Steps on It | Hodder & Stoughton | 1940 | |
| Enter the Ace | As Above | 1941 | |
| Nighthawk Strikes to Kill | As Above | 1941 | |
| Tiger Standish Does His Stuff | As Above | 1941 | |
| Danger Preferred | Hodder & Stoughton | 1942 | |
| Fear Walked Behind | Robert Hale | 1942 | |
| The Man in White | Staples | 1942 | |
| The Night of Reckoning | Eyre & Spottiswoode | 1942 | |
| The Hostage | Quality Press | 1943 | |
| High Hazard | Hodder & Stoughton | 1943 | |
| The Man Who Preferred Cocktails | Crowther | 1943 | |
| Murder Is So Simple | Eyre & Spottiswoode | 1943 | |
| Tiger Standish Has a Party | Todd | 1943 | |
| The Lady with the Limp | H&S | 1944 | |
| The Man with Dry Hands | Eyre & Spottiswoode | 1944 | |
| Nighthawk Mops Up | H&S | 1944 | |
| Murder for Sale | Vallancey Press | 1945 | |
| A Bullet for the Countess | Quality Press | 1945 | |
| Virus X | As Above | 1945 | |
| Dark Danger. | Mystery House | 1945 | UK ?? |
| Terror Comes to Twelvetrees | Eyre & Spottiswoode | 1945 | |
| Great Adventure and Out of a Dark Sky | Robert Hale | 1946 | 2 stories |
| Corridors of Fear | Quality Press | 1947 | |
| Ring Up Nighthawk | Hodder & Stoughton | 1947 | |
| The Closed Door | Pilot Press | 1948 | |
| Exit the Disguiser | Hodder & Stoughton | 1948 | |
| The House with the Light | Hodder & Stoughton | 1948 | |
| The Man Who Did Not Hang | Quality Press | 1948 | |
| The Man Who Loved Spiders | Barker | 1949 | |
| They Thought He Was Dead | Hodder & Stoughton | 1949 | |
| Whilst the Crowd Roared | Archer Press | 1949 | |
| A Man of Affairs | Pilot Press | 1949 | |
| Master of Venom | Hodder & Stoughton | 1949 | |
| The Blanco Case | Quality Press | 1950 | |
| The High Game | Redman | 1950 | |
| The House of the Uneasy Dead | Hodder & Stoughton | 1950 | |
| Nap on Nighthawk | Hodder & Stoughton | 1950 | |
| Scarlet ! Special Branch | Foulsham | 1950 | |
| The Devil Comes to Bolobyn | Marshall | 1951 | |
| The Man in the Cloak | Eyre and Spottiswoode | 1951 | |
| The House of Jackals | Hodder & Stoughton | 1951 | |
| The Man of Evil | Barker | 1951 | |
| Murderer at Large | Hodder & Stoughton | 1951 | |
| The Mystery of Mr. X | Foulsham | 1951 | |
| Scarlett Gets the Kidnapper | Foulsham | 1951 | |
| These Men and Women | Museum Press | 1951 | |
| The Blade Is Bright | Eyre and Spottiswoode | 1952 | |
| The Face of Stone | Barker | 1952 | |
| Hell's Brew | Hodder & Stoughton | 1952 | |
| The Man Who Used Perfume | Wingate | 1952 | |
| The Mocking Face of Murder | Hale | 1952 | |
| The Web | Redman | 1952 | |
| The Cage | Hale | 1953 | |
| The Dark Night | Hodder & Stoughton | 1953 | Red cloth, black titles. Jacket 10/6 |
| Death of a Spy | Museum Press | 1953 | |
| The Secret Hand | Barker | 1954 | |
| Nighthawk Swears Vengeance | Hodder & Stoughton | 1954 | |
| The Man in the Hood | Redman | 1955 | |
| The Man in the Shadows | Hale | 1955 | |
| The Dark Hostess | Eyre and Spottiswoode | 1955 |
|
Sydney Horler Biography - Further Information |
Author's Autograph - Signature
Classic Crime Fiction
Books Bought
Bibliographies
Dust Jackets