81. Old Conna Hill (53.22N, 6.14W) Dublin, Estate(s) 82. Old Connaught (53.21N, 6.13W) Dublin, Populated Place 83. Old Court (52.23N, 8.6W) Cork, Estate(s) 84. Old Courth (51.86N, 8.39W) Cork, Populated Place 85. Old Dromore House (51.87N, 9.75W) Kerry, Country House 86. Old Head (53.78N, 9.78W) , Cape 87. Old Head (51.64N, 8.55W) Cork, Cape 88. Old Head Lodge (53.77N, 9.78W) , Estate(s) 89. Old Head of Kinsale (51.61N, 8.54W) Cork, Cape 90. Old Kilcullen (53.11N, 6.77W) Kildare, Populated Place 91. Old Kildimo (52.61N, 8.81W) Limerick, Populated Place 92. Old Mountain (55.2N, 7.49W) Donegal, Populated Locality 93. Old Pallas (52.55N, 8.35W) Limerick, Populated Place 94. Old Pike Bridge (52.11N, 7.59W) Waterford, Populated Place 95. Old Port House (51.79N, 8.79W) Cork, Populated Place 96. Old Ross (52.39N, 6.82W) Wexford, Populated Place 97. Old Town (52.53N, 6.76W) Wexford, Populated Place 98. Old Town (55.08N, 7.61W) Donegal, Populated Locality 99. Old Town (54.94N, 7.74W) Donegal, Populated Place 100. Old Town (52.91N, 7.37W) Laois, Populated Place 101. Old Town (53.3N, 8.12W) Roscommon, Populated Place 102. Old Twopothouse Cross Roads (52.18N, 8.63W) , Populated Place 103. Old Woman's Hill (53.74N, 7.11W) Meath, Hills 104. Oldbawn (53.28N, 6.37W) Dublin, Populated Place 105. Oldboleys (53.2N, 6.28W) Wicklow, Populated Place 106. Oldbridge (53.05N, 6.28W) Wicklow, Populated Place 107. Oldcastle (53.95N, 9.03W) , Populated Place 108. Oldcastle (53.77N, 7.16W) Meath, Populated Place 109. Oldcastle (52.9N, 7.84W) Tipperary, Castle 110. Oldcastletown (52.26N, 8.43W) Cork, Populated Place 111. Oldchapel (51.74N, 8.79W) Cork, Populated Place 112. Oldconnell House (53.19N, 6.79W) Kildare, Country House 113. Oldcourt (52.48N, 7.03W) Kilkenny, Locality 114. Oldcourt (52.4N, 6.75W) Wexford, Locality 115. Oldcourt (51.67N, 8.57W) Cork, Populated Place 116. Oldcourt (52.35N, 6.98W) Wexford, Populated Place 117. Oldcourt (53.18N, 6.47W) Wicklow, Populated Place 118. Oldcourt (53.03N, 6.99W) Kildare, Populated Place 119. Oldcourt House (52.99N, 8.21W) Tipperary, Country House 120. Oldcourt House (53.27N, 6.34W) Dublin, Country House | 121. Oldglass (52.85N, 7.48W) Laois, Estate(s) 122. Oldgrange (52.32N, 7.84W) Tipperary, Locality 123. Oldgrange (52.56N, 7W) Kilkenny, Locality 124. Oldgrange (53.04N, 6.87W) Kildare, Populated Place 125. Oldhead House (53.77N, 9.78W) , Estate(s) 126. Oldleagh (52.88N, 7.02W) Laois, Populated Place 127. Oldleighlin (52.74N, 7.02W) Carlow, Populated Place 128. Oldmill Bridge (52.48N, 9.1W) Limerick, Populated Place 129. Oldstreet (53.14N, 8.22W) Galway, Populated Place 130. Oldtown (52.49N, 8.4W) Limerick, Locality 131. Oldtown (52.64N, 7.42W) Kilkenny, Locality 132. Oldtown (52.77N, 7.33W) Kilkenny, Locality 133. Oldtown (52.52N, 7.21W) Kilkenny, Populated Place 134. Oldtown (55.12N, 8.11W) Donegal, Populated Locality 135. Oldtown (52.63N, 9.75W) Clare, Populated Place 136. Oldtown (53.53N, 6.32W) Dublin, Populated Place 137. Oldtown (53.68N, 7.7W) Longford, Country House 138. Oldtown Cross Roads (52.64N, 6.53W) Wexford, Populated Place 139. Oldtown House (52.75N, 6.93W) Carlow, Country House 140. Oldtown House (53.68N, 7.7W) Longford, Country House 141. Oldtown House (53.23N, 6.67W) Kildare, Country House 142. Oldtowndonore (53.25N, 6.78W) Kildare, Populated Place 143. Ollatrim River (52.87N, 8.19W) Tipperary, Stream 144. Omeath (54.09N, 6.26W) Louth, Populated Place 145. Omeath Park (54.1N, 6.28W) Louth, Estate(s) 146. Omey Island (53.53N, 10.16W) Galway, Island 147. Ominey River (54.56N, 7.82W) Donegal, Stream 148. Onaght (53.15N, 9.79W) Galway, Populated Place 149. One Man's Pass (54.65N, 8.69W) Donegal, Pass 150. Ooghran Point (54.28N, 9.96W) Mayo, Point 151. Oola (52.53N, 8.26W) Limerick, Populated Place 152. Oola Hills (52.53N, 8.25W) Limerick, Hills 153. Oolagh Bridge (52.42N, 9.27W) Limerick, Populated Place 154. Oolagh River (52.39N, 9.31W) Limerick, Stream 155. Oorid (53.45N, 9.62W) , Lake 156. Oorid Lough (53.45N, 9.62W) , Lake 157. Oragagh River (52.01N, 7.82W) Waterford, Stream 158. Oran (53.67N, 8.33W) , Populated Place 159. Oran Mor (53.27N, 8.92W) Galway, Populated Place 160. Oranmore (53.27N, 8.92W) Galway, Populated Place |