| Name[4] | Location | Area (km2) | Designated | Description | Image |
| Baldoyle Bay | Dublin 53°24′N 6°8′W / 53.400°N 6.133°W / 53.400; -6.133 (Baldoyle Bay) | 2.03 | 25 October 1988 | | |
| Ballyallia Lough | County Clare 52°53′N 8°55′W / 52.883°N 8.917°W / 52.883; -8.917 (Ballyallia Lough) | 3.08 | 11 June 1996 | Lowest lake on the River Fergus | |
| Ballycotton Bay | County Cork 51°50′N 8°0′W / 51.833°N 8.000°W / 51.833; -8.000 (Ballycotton Bay) | 0.92 | 11 June 1996 | | |
| Ballymacoda | County Cork 51°52′N 7°55′W / 51.867°N 7.917°W / 51.867; -7.917 (Ballymacoda) | 3.75 | 11 June 1996 | | |
| Bannow Bay | County Wexford 52°27′N 6°17′W / 52.450°N 6.283°W / 52.450; -6.283 (Bannow Bay) | 9.58 | 11 June 1996 | | |
| Blacksod Bay and Broadhaven Bay | County Mayo 54°03′N 10°0′W / 54.050°N 10.000°W / 54.050; -10.000 (Blacksod Bay and Broadhaven Bay) | 6.83 | 11 June 1996 | Broadhaven Bay includes Atlantic salt marsh, tidal mudflats, reefs and shallow bays. | |
| Blackwater Estuary | County Cork, County Waterford51°57′N 7°48′W / 51.950°N 7.800°W / 51.950; -7.800 (Blackwater Estuary) | 4.68 | 11 June 1996 | | |
| Broadmeadow Estuary | 53°27′N 6°10′W / 53.450°N 6.167°W / 53.450; -6.167 (Broadmeadow Estuary) | 5.46 | 11 June 1996 | | |
| Castlemaine Harbour | County Kerry 52°7′N 9°55′W / 52.117°N 9.917°W / 52.117; -9.917 (Castlemaine Harbour) | 29.73 | 30 May 1990 | | |
| Clara Bog | County Offaly 53°19′N 7°37′W / 53.317°N 7.617°W / 53.317; -7.617 (Clara Bog) | 4.60 | 6 December 1988 | | |
| Coole Lough and Garryland Wood | County Galway 53°5′N 8°51′W / 53.083°N 8.850°W / 53.083; -8.850 (Coole Lough and Garryland Wood) | 3.64 | 30 May 1990 | | |
| Cork Harbour | County Cork 51°50′N 8°15′W / 51.833°N 8.250°W / 51.833; -8.250 (Cork Harbour) | 14.36 | 11 June 1996 | | |
| Cummeen Strand | County Sligo 54°17′N 8°30′W / 54.283°N 8.500°W / 54.283; -8.500 (Cummeen Strand) | 14.91 | 11 June 1996 | | |
| Dundalk Bay | County Louth 54°00′N 6°20′W / 54.000°N 6.333°W / 54.000; -6.333 (Dundalk Bay) | 47.68 | 11 June 1996 | | |
| Dungarvan Harbour | County Waterford52°3′N 7°35′W / 52.050°N 7.583°W / 52.050; -7.583 (Dungarvan Harbour) | 10.41 | 11 June 1996 | | |
| Easky Bog | County Sligo 54°11′N 8°49′W / 54.183°N 8.817°W / 54.183; -8.817 (Easky Bog) | 6.07 | 30 May 1990 | | |
| The Gearagh | County Cork 51°52′N 9°1′W / 51.867°N 9.017°W / 51.867; -9.017 (The Gearagh) | 3.07 | 30 May 1990 | | |
| Inner Galway Bay | 53°12′N 9°10′W / 53.200°N 9.167°W / 53.200; -9.167 (Inner Galway Bay) | 119.05 | 11 June 1996 | | |
| Killala Bay and Moy Estuary | County Mayo, County Sligo 54°15′N 9°10′W / 54.250°N 9.167°W / 54.250; -9.167 (Killala Bay and Moy Estuary) | 10.61 | 11 June 1996 | | |
| Knockmoyle and Sheskin | County Mayo 54°12′N 9°33′W / 54.200°N 9.550°W / 54.200; -9.550 (Knockmoyle and Sheskin) | 11.98 | 1 June 1987 | | |
| Lough Barra Bog | County Donegal 54°57′N 8°7′W / 54.950°N 8.117°W / 54.950; -8.117 (Lough Barra Bog) | 1.76 | 1 June 1987 | | |
| Lough Corrib | 53°30′N 9°15′W / 53.500°N 9.250°W / 53.500; -9.250 (Lough Corrib) | 177.28 | 11 June 1996 | | |
| Lough Derravaragh | County Westmeath 53°40′N 7°20′W / 53.667°N 7.333°W / 53.667; -7.333 (Lough Derravaragh) | 11.20 | 11 June 1996 | | |
| Lough Ennell | County Westmeath 53°27′N 7°23′W / 53.450°N 7.383°W / 53.450; -7.383 (Lough Ennell) | 14.04 | 11 June 1996 | | |
| Lough Gara | County Sligo, County Roscommon 53°56′N 8°25′W / 53.933°N 8.417°W / 53.933; -8.417 (Lough Gara) | 17.42 | 11 June 1996 | | |
| Lough Glen | County Westmeath 53°25′N 7°23′W / 53.417°N 7.383°W / 53.417; -7.383 (Lough Glen) | 0.81 | 11 June 1996 | | |
| Lough Iron | County Westmeath 53°37′N 7°17′W / 53.617°N 7.283°W / 53.617; -7.283 (Lough Iron) | 1.82 | 11 June 1996 | | |
| Lough Oughter | 54°2′N 7°25′W / 54.033°N 7.417°W / 54.033; -7.417 (Lough Oughter) | 14.64 | 11 June 1996 | | |
| Lough Owel | County Westmeath 53°35′N 7°23′W / 53.583°N 7.383°W / 53.583; -7.383 (Lough Owel) | 10.32 | 11 June 1996 | | |
| Meenachullion Bog | County Donegal 54°54′N 8°7′W / 54.900°N 8.117°W / 54.900; -8.117 (Meenachullion Bog) | 1.94 | 30 May 1990 | | |
| Mongan Bog | County Offaly 53°19′N 7°58′W / 53.317°N 7.967°W / 53.317; -7.967 (Mongan Bog) | 1.27 | 6 December 1988 | | |
| North Bull Island | Dublin 53°22′N 6°8′W / 53.367°N 6.133°W / 53.367; -6.133 (North Bull Island) | 14.36 | 6 September 1988 | | |
| Owenboy | County Mayo 54°6′N 9°28′W / 54.100°N 9.467°W / 54.100; -9.467 (Owenboy) | 3.97 | 1 June 1987 | | |
| Owenduff catchment | County Mayo 54°3′N 9°40′W / 54.050°N 9.667°W / 54.050; -9.667 (Owenduff catchment) | 13.82 | 31 July 1986 | | |
| Pettigo Plateau | County Donegal 54°37′N 7°57′W / 54.617°N 7.950°W / 54.617; -7.950 (Pettigo Plateau) | 9.00 | 31 July 1986 | | |
| Pollardstown Fen | County Kildare 53°11′N 6°51′W / 53.183°N 6.850°W / 53.183; -6.850 (Pollardstown Fen) | 1.30 | 30 May 1990 | | |
| Raheenmore Bog | County Offaly 53°20′N 7°21′W / 53.333°N 7.350°W / 53.333; -7.350 (Raheenmore Bog) | 1.62 | 6 December 1988 | | |
| The Raven | County Wexford 52°20′N 6°19′W / 52.333°N 6.317°W / 52.333; -6.317 (The Raven) | 5.89 | 31 July 1986 | | |
| Rogerstown Estuary | Dublin 53°30′N 6°8′W / 53.500°N 6.133°W / 53.500; -6.133 (Rogerstown Estuary) | 1.95 | 25 October 1988 | | |
| Sandymount Strand and Tolka Estuary | 53°20′N 6°12′W / 53.333°N 6.200°W / 53.333; -6.200 (Sandymount Strand and Tolka Estuary) | 6.54 | 11 June 1996 | | |
| Slieve Bloom Mountains | County Offaly, County Laois 53°3′N 7°38′W / 53.050°N 7.633°W / 53.050; -7.633 (Slieve Bloom Mountains) | 22.30 | 31 July 1986 | | |
| Tralee Bay | County Kerry 52°16′N 9°48′W / 52.267°N 9.800°W / 52.267; -9.800 (Tralee Bay) | 8.61 | 10 July 1989 | | |
| Tramore Backstrand | County Waterford 52°10′N 7°7′W / 52.167°N 7.117°W / 52.167; -7.117 (Tramore Backstrand) | 3.67 | 11 June 1996 | | |
| Trawbreaga Bay | County Donegal 55°17′N 7°15′W / 55.283°N 7.250°W / 55.283; -7.250 (Trawbreaga Bay) | 10.03 | 11 June 1996 | | |
| Wexford Wildfowl Reserve | County Wexford 52°30′N 6°20′W / 52.500°N 6.333°W / 52.500; -6.333 (Wexford Wildfowl Reserve) | 1.94 | 15 November 1984 | | |