The "Baron of Limerick" is a title associated with the Irish peerage, specifically linked to the city of Limerick in Ireland. The title has historical significance and has been held by various individuals over the years, often connected to the Anglo-Irish aristocracy. The title is part of the Peerage of Ireland, which includes various ranks such as duke, marquess, earl, viscount, and baron. The current holder of the title, as of the latest information, is David O'Brien, who succeeded to the title in the 20th century.