| Name | Participants | Dates | Stamps | ||
| Biosphere Reserves - joint issue Canada-Ireland | 2 | (with Canada) | 2005 | 4 | |
| Europa 1960 | 18 | (with Belgium - Turkey) | 1960 | 34 | (incomplete) |
| Europa 1962 | 16 | (with Belgium - Turkey) | 1962 - 1963 | 34 | (incomplete) |
| Europa 1963 | 18 | (with Belgium - Turkey) | 1963 | 35 | (incomplete) |
| Europa 1964 | 19 | (with Austria - Turkey) | 1964 | 36 | (incomplete) |
| Europa 1965 | 19 | (with Belgium - Turkey) | 1965 | 36 | (incomplete) |
| Europa 1966 | 18 | (with Andorra (Fr) - Turkey) | 1966 | 35 | (incomplete) |
| Europa 1967 | 19 | (with Andorra (Fr) - Turkey) | 1967 | 39 | (incomplete) |
| Europa 1968 | 17 | (with Andorra (Fr) - Turkey) | 1968 | 34 | (incomplete) |
| Europa 1969 | 25 | (with Andorra (Fr) - Yugoslavia) | 1969 | 50 | (incomplete) |
| Europa 1970 | 18 | (with Andorra (Fr) - Yugoslavia) | 1970 | 39 | (incomplete) |
| Europa 1971 | 15 | (with Belgium - Yugoslavia) | 1971 | 31 | (incomplete) |
| Europa 1972 | 22 | (with Andorra (Fr) - Yugoslavia) | 1972 | 46 | (incomplete) |
| Europa 1973 | 13 | (with Andorra (Sp) - Switzerland) | 1973 | 27 | (incomplete) |
| Irish immigration | 2 | (with United States) | 1999 | 2 | |
| James Hoban death 150th | 2 | (with United States) | 1981 | 3 | |
| John McCormack 100th | 2 | (with United States) | 1984 | 2 | |
| Joint issue Spain - Ireland | 2 | (with Spain) | 2008 | 4 | |
| The Art of Engraving - joint issue Ireland-Sweden | 2 | (with Sweden) | 2010 | 4 |