Destacados a b c d e f g h i j k l m n o p q r s t u v w x y z Orden alfabético O Oileán Ciarraí Old Kilcullen Oranmore O’Reilly’s Island Oatquarter Ogham Ogham Oghambaun Oghil Oghil Oghill Cross Roads Oghly Island Oileán Dá Bhranóg Oileán na Tuí Old Town Old Town Oldcastle Oldrock Oldstreet Omey Island Onaght Ooghwee Oran Orcusconny Ormond View Oughtagh Oughterard Oultort Ourtnagapple Owenbeg