| Title | US Title | Publisher | Year | Other Information |
| The Mysterious Affair at Styles | | England: Lane | 1920 | |
| The Secret Adversary | | England: Lane | 1922 | |
| The Murder on the Links | | England: Lane | 1923 | |
| The Man in the Brown Suit | | England: Lane | 1924 | |
| Poirot Investigates | | England: Lane | 1925 | Short stories |
| The Secret of Chimneys | | England: Lane | 1925 | |
| The Murder of Roger Ackroyd | | London: Collins | 1925 | |
| The Big Four | | NY: Dodd, Mead & Co. | 1927 | |
| The Mystery of the Blue Train | | London: Collins | 1928 | |
| The Seven Dials Mystery | | London: Collins | 1929 | |
| Partners in Crime | | London: Collins | 1929 | Short stories |
| The Murder at the Vicarage | | London: Collins | 1930 | |
| The Mysterious Mr. Quin | | London: Collins | 1930 | |
| The Sittaford Mystery | Murder at Hazelmoor | London: Collins | 1931 | |
| Peril at End House | | London: Collins | 1932 | |
| Thirteen Problems | The Tuesday Club Murders | London: Collins | 1932 | Short stories |
| Lord Edgware Dies | Thirteen at Dinner | London: Collins | 1933 | |
| The Hound of Death | | London: Collins | 1933 | Short stories |
| Why Didn't They Ask Evans? | The Boomerang Club | London: Collins | 1934 | |
| Murder on the Orient Express | Murder in the Calais Coach | London: Collins | 1934 | |
| The Listerdale Mystery | | London: Collins | 1934 | |
| Parker Pyne Investigates | Mr. Parker Pyne, Detective | London: Collins | 1934 | |
| Three-Act Tragedy | Murder in Three Acts | NY: Dodd, Mead & Co. | 1934 | |
| Death in the Clouds | Death in the Air | NY: Dodd, Mead & Co. | 1935 | |
| The ABC Murders | | NY: Dodd, Mead & Co. | 1935 | |
| Murder in Mesopotamia | | London: Collins | 1936 | |
| Cards on the Table | | London: Collins | 1936 | |
| Murder in the Mews | Dead Man's Mirror | London: Collins | 1937 | Short stories/Novellas |
| Dumb Witness | Poirot Loses a Client | London: Collins | 1937 | |
| Death on the Nile | | London: Collins | 1937 | |
| Appointment with Death | | London: Collins | 1938 | |
| Hercule Poirot's Christmas | Murder for Christmas, A Holiday for Murder | London: Collins | 1938 | |
| Murder is Easy | Easy to Kill | London: Collins | 1939 | |
| The Regatta Mystery | | NY: Dodd, Mead & Co. | 1939 | Short stories |
| Ten Little Niggers | And Then There Were None | London: Collins | 1939 | |
