| Irish canine | 12 |
| Irish capital | 13 |
| Irish Capital or Ontario town | 29 |
| Irish carrier word | 18 |
| Irish chamber | 13 |
| Irish chemist? | 14 |
| Irish chief's stronghold | 28 |
| Irish city | 10 |
| Irish city near Killarney | 25 |
| Irish city of song | 18 |
| Irish city where The Cranberries formed | 39 |
| Irish clan | 10 |
| Irish clans | 11 |
| Irish clover | 12 |
| Irish coat | 10 |
| Irish Cobbler | 13 |
| Irish coffee ingredient | 23 |
| Irish coin | 10 |
| Irish comedian's audience? | 30 |
| Irish county | 12 |
| Irish county and seaport | 24 |
| Irish county bordered by the river Shannon | 42 |
| Irish county containing the Lakes of Killarney | 46 |
| Irish county in Leinster | 24 |
| Irish county north of Limerick | 30 |
| Irish county on the Atlantic | 28 |
| Irish county or port | 20 |
| Irish county or TV doctor | 25 |
| Irish county seat | 17 |
| Irish county, for short | 23 |
| Irish county: Abbr. | 19 |
| Irish course of study? | 22 |
| Irish cries | 11 |
| Irish cry | 9 |
| Irish crystal center | 20 |
| Irish cudgel | 12 |
| Irish dairy cattle breed | 24 |
| Irish dairy-cattle breed | 24 |
| Irish dance | 11 |
| Irish dancer Montez | 19 |
| Irish dances | 12 |
| Irish darling | 13 |
| Irish darlings | 14 |
| Irish dialect | 13 |
| Irish diminutive suffix | 23 |
| Irish dish | 10 |
| Irish dissidents org. | 21 |
| Irish dog | 9 |
| Irish dogs | 10 |
| Irish dogsled racer? | 20 |
| Irish dramatist | 15 |
| Irish dramatist Hugh, who won a Tony for "Da" | 55 |
| Irish dramatist Sean | 20 |
| Irish dramatist: 1871-1909 | 26 |
| Irish drinking cup | 18 |
| Irish elf | 9 |
| Irish emblem | 12 |
| Irish energy | 12 |
| Irish ensemble with five singers, a fiddler, and a few PBS specials | 67 |
| Irish equivalent of Edward | 26 |
| Irish ethereal queen | 20 |
| Irish euphemism | 15 |
| Irish evictee? | 14 |
| Irish exclamation | 17 |
| Irish expletive | 15 |
| Irish export | 12 |
| Irish fairies | 13 |
| Irish fairy folk | 16 |
| Irish farmers, 1840 | 19 |
| Irish fellow | 12 |
| Irish festival | 14 |
| Irish fireplace fuel | 20 |
| Irish first name? | 17 |
| Irish folk | 10 |
| Irish folk dance | 16 |
| Irish folk hero | 15 |
| Irish folk musician O'Flynn | 31 |
| Irish folk singer | 17 |
| Irish folk singer Sinead | 24 |
| Irish folk song that was a Grammy-winning vehicle for Metallica | 63 |
| Irish folksinger | 16 |
| Irish follower | 14 |
| Irish form of Helen | 19 |
| Irish fortification | 19 |
| Irish Free State | 16 |
| Irish Free State successor | 26 |
| Irish fuel | 10 |
| Irish Gaelic | 12 |
| Irish Gaelics | 13 |
| Irish game resembling field hockey | 34 |
| Irish girl's name | 21 |
| Irish girls | 11 |
| Irish goblin | 12 |
| Irish goblins | 13 |
| Irish god | 9 |
| Irish god of the sea | 20 |
| Irish golfer Smyth | 18 |
| Irish golfer who won the Open Championship in 1947 | 50 |
| Irish governing house | 21 |
| Irish greeting | 14 |