| Place Name | Civil Parish | Situation |
| ½ Doonawaul beg | Ballindoon | Situated partly in the townland of Ballyconneely. |
| ½ Doonawaul more | Ballindoon | Situated in the townland of Ballyconneely. |
| ½ Duck Island | Ballindoon | Situated in the Atlantic ocean. |
| ½ Duck Island | Ballindoon | Situated partly in the townland of Ballyconneely. |
| ½ Illaunleama | Ballindoon | Situated in the townland of Ballyconneely. |
| Annagh | Kilcummin | In Lough Corrib. |
| Annagh Island | Moycullen | In Lough Corrib, E. of parish and Clooniff townland to which it belongs |
| Annaghminnoge | Kilcummin | In Currareavagh townland. |
| Apple island | Ballynakill in the barony of Ballynahinch | To the S.E. of Heath Island and N.W. of Wood Island. |
| Ardillaun | Ballindoon | Situated in Manning Bay. |
| Ardillaun | Cong | Situated in the townland of Dooris. |
| Ardnacross Island | Moyrus | In the sea S.E. of Mason Island |
| Ash Island | Moyrus | In the centre of Ballinahinch Lake |
| Ashes Island | Moyrus | In the W. end of Loughscanive |
| Ballinafad Island | Moyrus | In the E. end of Ballinahinch Lake |
| Bare Island | Kilcummin | In Loughahallia. |
| Bare Island | Moyrus | In the W. end of Loughscanive |
| Beade Island | Moyrus | In the centre of Kerryhill Lough |
| Bealnacurra | Kilcummin | In Loughahallia. |
| Belion Island stet. | Kilcummin | In Loughahallia. |
| Bent Island or Illaunamureelagh | Ballindoon | Situated in the Atlantic ocean. |
| Bent Island or Illaunmureelagh | Ballindoon | Situated in the Atlantic ocean. |
| Bertragh Island | Moycullen | In Lough Corrib, N.E. of the parish |
| Big Island | Kilcummin | In Loughahallia. |
| Big Island | Meelick | Bounded on the N. by Callowmore part of Camas and Callowbeg part of Camas, on the West by Corinsh Island, on the E. by Meelick and on the S. by Friars Island and the River Shannon. |
| Big Island | Moycullen | In Boliskey Lough, W. of the parish and Letterpeak townland to which it belongs |
| Big Island | Moyrus | In the S. of Loughnaweelaun |
| Bilberry Island | Cong | Situated in the townland of Curnamona. |
| Bilberry Island | Kilcummin | Belongs to the townland of Lemonfield. In Lough Corrib. |
| Bilberry Island | Lough Mask | North end of Lough Mask |
| Bilberry Island | Moyrus | In the W. end of Derryclare Lough |
| Bilberry Island | Moyrus | In the W. end of Loughscanive |
| Bilberry Island | Moyrus | In the centre of Loughanissaundugh |
| Bilberry Islands East and West | Kilcummin | In Loughinverbeg. |
| Billybeg | Annaghdown | An Island in Lough Corrib.Situate 8 chains S. E. of the most Northern part of Mucrush townland. |
| Birbeg Island | Moyrus | In the sea about 1 1/8 miles S.E. of Feenish Island |
| Birch Island | Moyrus | In the centre of Derryclare Lough |
| Bird Island | Ballynacourty | In the inlet of the sea, N. of Gurraun Lower townland |
| Bird Island | Drumacoo | N.W. of the parish and Killeenarran townland. |
| Bird Island | Oranmore | A small island N. of Renville W. townland. |
| Black Island | Kilcummin | In Loughbunnahask. |
| Black Island | Moyrus | In the centre of Loughbrackmore |
| Black Islands | Lough Mask | North West side of Lough Mask. |
| Black Rock | Moyrus | In the W. end of Derryclare Lough |
| Black Rock Island | Lough Mask | North West side of Lough Mark |
| Blackberry Island | Moyrus | In the W. extremity of Loughscanive |
| Board Island | Lough Mask | North end of Lough Mask |
| Boghilbeg Islands | Moycullen | In Lough Corrib, N.E. of the parish |
| Booeybeg | Cong | Situated in the townland of Cloonbrone. |
| Booeymore | Cong | Situated in the townland of Cloonbrone. |
| Briar island | Kilcummin | In Lougharoolagh. |
| Brickeen | Cong | Situated in the townland of Cloonbrone. |
| Bridge Lough | Kinvarradoorus | In the East of the townland Taunagh, parish Doorus, Barony of Kiltartan and County Galway. |
| Broad Island | Kilcummin | In Loughahallia. |
| Bronteen Island | Kilcummin | In Lough Corrib belongs to the townland of Lemonfield. |
| Broom Island | Kilcummin | In Lough Rusheen. |
| Broom Island | Moyrus | In the N. end of Lough Rusheen |
| Browne Island | Moyrus | In the centre of Tullaghlumminmore Lough |
| Brush Island | Ballynacourty | In the inlet of the sea, between Gurraun Lower and Threanlaur |
| Buck Island | Kilcummin | In Lough Corrib, it belongs to the Island Inchacautrear. |
| Buck Island | Moyrus | In the centre of Loughanissaundugh |
| Buck Island No. 1 | Annaghdown | |
| Buck Island No. 2 | Annaghdown | |
| Bullaun Dooda Lower | Kinvarradoorus | In the South of townland Rinneen, parish of Doorus, Barony of Kiltartan and County Galway. |
| Bulrush Island | Moyrus | In the E. end of Ballinahinch Lake |
| Bunmore Island | Moyrus | In the S. end of Oorid Lough |
| Bunnahowen Island | Moyrus | In the centre of Derryclare Lough |
| Bunowen Island | Moyrus | Situated 1 ch. S. of Derryclare Lough in the S.W. corner of the townland of Cloonacartin |
| Burke or Baunagh Islands | Lough Mask | West side of Lough Mask |
| Burned Island | Kilcummin | In Loughahallia. |
| Burned Island | Kilcummin | In Lough Rusheen. |
| Burned Island | Moyrus | In the N. end of Lough Rusheen |
| Burned Island | Moyrus | In the centre of Loughnaweelaun |
| Burned Island W. | Moyrus | In the centre of Loughnaweelaun |
| Burnt Island | Lough Mask | North East end of Lough Mask |
| Bush Island | Kilcummin | In Lough Corrib close to the North side of Carrowreevagh townland. |
| Bush Island | Lough Mask | East side of Lough Mask |
| Bush Islands | Kinvarradoorus | North of Taunagh townland, parish of Kinvarra, Barony of Kiltartan, Co. Galway. |
| Bushy Islands | Iniscaltra | In Lough Derg about ¾ of a mile South of Mount Shannon townland. |
| Button Island | Cong | Situated in the townland of Cloonbrone. |
| Cabbage Island | Kilcummin | In Camus Bay, it belongs to the townland of Derravonniv. |
| Calf Island | Lough Mask | North East end of Lough Mask |
| Canbarra | Cong | Situated in the townland of Dooris. |
| Canura | Cong | Situated in the townland of Cloonbrone. |
| Carnagh Island | Kilcummin | In Loughahalia. |
| Carra Island or Illaunacanna | Moyrus | On the sea shore, N.E. of Minish Island |
| Carraig | Kinvarradoorus | North West of townland Dungoorg East, parish of Kinvarra, Barony of Kiltartan and County Galway. |
| Carraigín a Mhuc Fhada | Ross Parish | Situated in the townland of Thoorloggagh. |
| Carrickaguna | Moyrus | In the sea S. of Mason Island |
| Carrickaherbeg | Moyrus | N.W. of Mason Island |
| Carrickahermore | Moyrus | N.W. of Mason Island |
| Carrickalusk | Moyrus | In the sea about one mile S. of Feenish Island |
| Carrickbricka | Moyrus | Forming part of the Skerds and about ¾ of a mile N. of Skerdmore Rock |
| Carrickcark | Ballindoon | Situated in the Atlantic ocean. |
| Carrickcoughagh | Moyrus | Forming part of the Skerds and about 2 miles S.W. of Deer Island |
| Carrickculloo | Omey | About 2 miles W. and N. of Omey Island and about ½ a mile E. by S. from ? Island, and about ½ do W of the W. end of the parish (the townland of Gannoughs). |
| Carrickdown | Ballindoon | Situated in the townland of Ballinleama. |
| Carrickfadda | Moyrus | Situated N. of the townland of Collanacruck |
| Carrickillaunnascalp | Kilcummin | In Loughahallia. |
| Carricknabertragh | Moyrus | In the S.W. extremity of Berterbwee Bay |
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