Cobh was a harbor town on Earth, in County Cork in Ireland. It was notable for sitting on a hill and the St Colman's Cathedral. In the 2370s, Cobh was home to Anne Carey and her family. Cobh had at least one transporter station. (VOY - Strange New Worlds 6 short story: "Widow's Walk")
In September 2377, Captain Kathryn Janeway visited the Careys to convey her sympathies for the death of Joe Carey earlier that year and brought a medal and Joe Carey's unfinished ship in a bottle model of USS Voyager, his final assignment.
In October 2377, Anne Carey realized her son J.J. would follow in his father's footsteps and join Starfleet when she saw he had finished the model of Voyager. (VOY - Strange New Worlds 6 short story: "Widow's Walk")