Dublin is a city in Franklin, Delaware, and Union counties in the U.S. state of Ohio. The population was 41,751 at the 2010 census. Dublin is a suburb of Columbus, Ohio. Each year in late May or early June, the city hosts the Memorial Tournament, a stop on golf's PGA Tour. Consequently, a large number of golf aficionados choose to make Dublin their home. There are also several other golf courses in Dublin. The Riviera Golf Club is home to the American-Italian Golf Association.