| 0-59 | BJ McCarthy | Ireland v Scotland | Blundstone Arena, Hobart | 2022/23 |
| 0-59 | MR Adair | Ireland v Australia | Brisbane Cricket Ground, Woolloongabba, Brisbane | 2022/23 |
| 1-53 | AR Cusack | Ireland v Zimbabwe | Sylhet Stadium, Sylhet | 2013/14 |
| 1-47 | TJ Murtagh | Ireland v Netherlands | Sylhet Stadium, Sylhet | 2013/14 |
| 0-46 | BJ McCarthy | Ireland v New Zealand | Adelaide Oval, Adelaide | 2022/23 |
| 0-45 | JB Little | Ireland v Sri Lanka | Blundstone Arena, Hobart | 2022/23 |
| 1-45 | DT Johnston | Ireland v Pakistan | The Brit Oval, Kennington | 2009 |
| 1-43 | DT Johnston | Ireland v New Zealand | Trent Bridge, Nottingham | 2009 |
| 1-43 | GH Dockrell | Ireland v Netherlands | Sylhet Stadium, Sylhet | 2013/14 |
| 2-43 | AR Cusack | Ireland v New Zealand | Trent Bridge, Nottingham | 2009 |
| 0-41 | Simranjit Singh | Ireland v Sri Lanka | Sheikh Zayed Stadium, Abu Dhabi | 2021/22 |
| 1-41 | AR Cusack | Ireland v Pakistan | The Brit Oval, Kennington | 2009 |
| 1-39 | MR Adair | Ireland v New Zealand | Adelaide Oval, Adelaide | 2022/23 |
| 2-39 | MR Adair | Ireland v Zimbabwe | Blundstone Arena, Hobart | 2022/23 |
| 0-38 | C Campher | Ireland v Sri Lanka | Sheikh Zayed Stadium, Abu Dhabi | 2021/22 |
| 1-38 | AR Cusack | Ireland v Bangladesh | Trent Bridge, Nottingham | 2009 |
| 0-36 | DT Johnston | Ireland v West Indies | Guyana National Stadium, Providence | 2010 |
| 0-36 | TJ Murtagh | Ireland v Oman | Himachal Pradesh Cricket Association Stadium, Dharamsala | 2015/16 |
| 1-36 | WB Rankin | Ireland v Bangladesh | Trent Bridge, Nottingham | 2009 |
| 2-35 | WB Rankin | Ireland v West Indies | Guyana National Stadium, Providence | 2010 |
| 2-35 | MR Adair | Ireland v Sri Lanka | Sheikh Zayed Stadium, Abu Dhabi | 2021/22 |
| 0-34 | RM West | Ireland v Sri Lanka | Lord's Cricket Ground, St John's Wood | 2009 |
| 0-33 | CA Young | Ireland v Namibia | Sharjah Cricket Association Stadium, Sharjah | 2021/22 |
| 0-33 | GJ Delany | Ireland v England | Melbourne Cricket Ground, Melbourne | 2022/23 |
| 1-33 | RM West | Ireland v Pakistan | The Brit Oval, Kennington | 2009 |
| 1-33 | BJ McCarthy | Ireland v West Indies | Blundstone Arena, Hobart | 2022/23 |
| 2-33 | WK McCallan | Ireland v New Zealand | Trent Bridge, Nottingham | 2009 |
| 2-33 | WK McCallan | Ireland v Sri Lanka | Lord's Cricket Ground, St John's Wood | 2009 |
| 0-31 | KJ O'Brien | Ireland v New Zealand | Trent Bridge, Nottingham | 2009 |
| 0-31 | JB Little | Ireland v West Indies | Blundstone Arena, Hobart | 2022/23 |
| 1-31 | GH Dockrell | Ireland v Australia | R Premadasa Stadium, Colombo | 2012/13 |
| 2-31 | Simranjit Singh | Ireland v Zimbabwe | Blundstone Arena, Hobart | 2022/23 |
