| Chambered Cairns (17) | Court Tombs (157) |
| Kists (18) | Passage Tombs (112) |
| Portal Tombs (163) | Wedge Tombs (199) |
| Henges (10) | Stone Circles (132) |
| Standing Stones (289) | Stone Pairs (44) |
| Stone Rows or Alignments (44) |
| Artificial Mounds (28) | Barrows (44) |
| Cairns (79) |
| Boulder Burials (7) | Cists (5) |
| Rock Art (96) |
| Crannogs (7) |
| Castles (14) | Hill Forts (16) |
| Mottes (13) | Promontory Forts (3) |
| Raths (20) | Ring Forts (14) |
| Stone Forts (26) |
| Fulachta Fiadha (5) |
| Souterrains (9) |
| Ogham Stones (31) |
| Churches (98) | Crosses (49) |
| Cross Pillars (18) | Cross-Inscribed Stones (2) |
| Grave or Cross Slabs (25) | High Crosses (49) |
| Leachts (3) | Oratories (4) |
| Round Towers (54) | Tomb Shrines (1) |
| Holy Wells (76) |
| Caves (5) | Cursuses (1) |
| Dubious Sites (6) | Hill Figures (1) |
| Hut Circles (14) | Lakes or Islands (6) |
| Miscellaneous Sites (19) | Rock Outcrops (11) |
| Sacred Hills (4) | Visitor Centres (5) |
| Sweat Houses (16) |
| Cult Stones (3) |
| Bullaun Stones (158) |
| Carved Figures (4) | Carved Heads (1) |
| Sheela-na-Gigs (15) |