This is a list of the 10 members of the European Parliament for Ireland appointed to the delegation from the Oireachtas as a result of the Irish accession to the European Economic Community on 1 January 1973. The first delegation, served only two months, from 1 January 1973 until the 1973 general election in February.
| Name | National party | National office | |
|---|---|---|---|
| Conor Cruise O'Brien | Teachta Dála | ||
| Anthony Esmonde | Teachta Dála | ||
| Michael Herbert | Teachta Dála | ||
| Michael Hilliard | Teachta Dála | ||
| Justin Keating | Teachta Dála | ||
| Charles McDonald | Senator | ||
| Farrell McElgunn | Senator | ||
| Tom Nolan | Teachta Dála | ||
| Richie Ryan | Teachta Dála | ||
| Michael Yeats | Senator | ||