For all cities with a population greater than one hundred thousand, Cork is closest to Dublin and farthest from Dunedin. The closest foreign city is Swansea and the farthest domestic city is Dublin. See below for the top 5 closest and farthest cities (domestically, internationally and by continent) and to see which cities, if any, Cork is the closest and farthest to. Filter to include all cities over 100k, 500k or 1 million in population.