| 2023 | Exiles | Ned Kelly Awards source ↗ (opens in a new tab) | Winner · Best Crime Fiction | |
| 2023 | Exiles | BookPage Best Books of the Year source ↗ (opens in a new tab) | Selection · Mystery & Suspense | |
| 2022 | The Survivors | Dublin Literary Award source ↗ (opens in a new tab) | Longlist · Fiction | |
| 2021 | The Survivors | Ned Kelly Awards source ↗ (opens in a new tab) | Shortlist · Best Crime Fiction | |
| 2021 | The Survivors | Goodreads Choice Awards source ↗ (opens in a new tab) | Nominee · Mystery & Thriller | |
| 2021 | The Survivors | Financial Times Best Books of the Year source ↗ (opens in a new tab) | Selection · Crime fiction | |
| 2020 | The Lost Man | Barry Awards source ↗ (opens in a new tab) | Winner · Best Mystery/Crime Novel | |
| 2020 | The Lost Man | Dublin Literary Award source ↗ (opens in a new tab) | Longlist · Fiction | |
| 2020 | The Dry | Barry Awards source ↗ (opens in a new tab) | Nominee · Best Mystery/Crime Novel of the Decade | |
| 2019 | The Lost Man | Ned Kelly Awards source ↗ (opens in a new tab) | Winner · Best Crime Fiction | |
| 2019 | The Lost Man | Thriller Awards source ↗ (opens in a new tab) | Winner · Best Paperback Original Novel | |
| 2019 | The Lost Man | Los Angeles Times Book Prizes source ↗ (opens in a new tab) | Finalist · Mystery/Thriller | |
| 2019 | The Lost Man | Macavity Awards source ↗ (opens in a new tab) | Nominee · Best Mystery Novel | |
| 2019 | The Lost Man | Goodreads Choice Awards source ↗ (opens in a new tab) | Nominee · Mystery & Thriller | |
| 2019 | The Lost Man | The Irish Times Best Books of the Year source ↗ (opens in a new tab) | Selection · Books of the Year | |
| 2019 | The Lost Man | Library Journal Best Books source ↗ (opens in a new tab) | Selection · Crime Fiction | |
| 2019 | The Lost Man | Kirkus Best Books of the Year source ↗ (opens in a new tab) | Selection · Fiction | |
| 2019 | The Lost Man | BookPage Best Books of the Year source ↗ (opens in a new tab) | Selection · Mystery | |
| 2018 | The Dry | Barry Awards source ↗ (opens in a new tab) | Winner · Best First Mystery/Crime Novel | |
| 2018 | The Dry | British Book Awards source ↗ (opens in a new tab) | Winner · Crime & Thriller Book of the Year | |
| 2018 | The Dry | Dublin Literary Award source ↗ (opens in a new tab) | Longlist · Fiction | |
| 2018 | The Dry | Macavity Awards source ↗ (opens in a new tab) | Nominee · Best First Mystery | |
| 2018 | The Dry | Anthony Awards source ↗ (opens in a new tab) | Nominee · Best First Novel | |
| 2018 | Force of Nature | Goodreads Choice Awards source ↗ (opens in a new tab) | Nominee · Mystery & Thriller | |
| 2018 | Force of Nature | Financial Times Best Books of the Year source ↗ (opens in a new tab) | Selection · Crime | |
| 2017 | The Dry | Ned Kelly Awards source ↗ (opens in a new tab) | Winner · Best Debut Crime Fiction | |
| 2017 | The Dry | CWA Daggers source ↗ (opens in a new tab) | Winner · Gold Dagger | |
| 2017 | The Dry | Goodreads Choice Awards source ↗ (opens in a new tab) | Nominee · Debut Goodreads Author | |
| 2017 | The Dry | Goodreads Choice Awards source ↗ (opens in a new tab) | Nominee · Mystery & Thriller | |
| 2017 | The Dry | Chicago Public Library Best of the Best source ↗ (opens in a new tab) | Selection · Best Books | |
| 2017 | The Dry | The Telegraph Best Books of the Year source ↗ (opens in a new tab) | Selection · Best Books | |
| 2017 | The Dry: A Novel | NPR Books We Love source ↗ (opens in a new tab) | Selection · Books We Love | |
| 2017 | The Dry | The Guardian Best Books of the Year source ↗ (opens in a new tab) | Selection · Crime and thrillers | |
| 2017 | The Dry | Amazon Editors' Best Books of the Year source ↗ (opens in a new tab) | Selection · Top 10 | |