Cork General Post Office (GPO) is a historic post office building in Oliver Plunkett Street in Cork, Ireland. Built on the site of an older theatre, it is one of the few An Post offices in Ireland which still retains the General Post Office moniker from the times when the Irish postal service was under the governance of the British General Post Office. The post office is one of Oliver Plunkett Street's most prominent buildings, and is listed as a protected structure.