| # | Name | Score | Name | Score | Wk | Club | Date | Opposition | Ground | Grade | Runs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AC Botha | 157 | EJG Morgan | 209 | 3 | Ireland | 10-Feb-2007 | UAE | Sheikh Zayed Abu Dhabi | 1stClas | 360 |
| 2 | EC Joyce | 205 | WTS Porterfield | 186 | 2 | Ireland | 24-Oct-2015 | Namibia | Wanderers CC Windhoek | 1stClas | 326 |
| 3 | JP Bray | 190 | NJ O'Brien | 176 | 2 | Ireland | 23-Oct-2005 | UAE | Wanderers CC Windhoek | 1stClas | 304 |
| 4 | AC Botha | 186 | AR Cusack | 130 | 6 | Ireland | 09-Aug-2007 | Scotland | Stormont, Belfast | 1stClas | 234 |
| 5 | PR Stirling | 146 | EC Joyce | 231 | 2 | Ireland | 02-Jun-2015 | UAE | Malahide | 1stClas | 231 |
| 6 | KJ O'Brien | 142 | WTS Porterfield | 104 | 4 | Ireland | 02-Feb-2007 | Kenya | Ruaraka, Nairobi | ODI | 227 |
| 7 | DA Lewis | 113 | GD Harrison | 105 | 4 | Ireland | 11-Jun-1994 | Scotland | Hamilton Cresc.Glasgow | 1stClas | 224* |
| 8 | MP Rea | 106 | SJS Warke | 113 | 1 | Ireland | 26-Jul-1992 | Wales | College Park Dublin | 3 Day | 224 |
| 9 | IJ Anderson | 147 | AJ O'Riordan | 117 | 4 | Ireland | 07-Aug-1976 | Scotland | Hamilton Cresc.Glasgow | 1stClas | 222 |
| 10 | AC Botha | 122 | WTS Porterfield | 166 | 2 | Ireland | 23-Aug-2007 | Bermuda | Castle Avenue Dublin | 1stClas | 221 |
| 11 | JF Mooney | 107 | AR White | 144 | 6 | Ireland | 11-Aug-2010 | Netherlands | Rathmines Dublin | 1stClas | 221 |
| 12 | KJ O'Brien | 171 | AR White | 92 | 5 | Ireland | 11-Oct-2008 | Kenya | Gymkhana, Nairobi | 1stClas | 214* |
| 13 | PR Stirling | 142 | A Balbirnie | 113 | 2 | Ireland | 04-Aug-2020 | England | Ageas Bowl, Southampton | ODI | 214 |
| 14 | A Balbirnie | 121 | HT Tector | 101 | 3 | Ireland | 18-Jan-2023 | Zimbabwe | Harare Sports Club | ODI | 212 |
| 15 | MA Masood | 138 | DG Dennison | 69 | 2 | Ireland | 28-Aug-1985 | MCC | Lord's | 2 Day | 207 |
| 16 | AD Patterson | 73 | AR Dunlop | 148 | 3 | Ireland | 15-Jun-1996 | MCC | Malahide | 3 Day | 206 |
| 17 | WTS Porterfield | 92 | PR Stirling | 126 | 1 | Ireland | 12-Mar-2018 | UAE | Old Harrarians | ODI | 205 |
| 18 | JP Bray | 146 | WTS Porterfield | 54 | 1 | Ireland | 22-May-2007 | Canada | Grace Road Leics | 1stClas | 202 |
| 19 | AD Comyn | 157 | WD Hamilton | 93 | 6 | Ireland | 20-Aug-1896 | I Zingari | Phoenix Park | 2 Day | 201 |
| 20 | A Balbirnie | 102 | WTS Porterfield | 139 | 2 | Ireland | 13-Jan-2018 | UAE | ICC Academy, Dubai | ODI | 201 |