The title Duke of Abercorn (/ˈævərkɔːrn/) is a title in the Peerage of Ireland. It was created in 1868 and bestowed upon James Hamilton, 2nd Marquess of Abercorn. Although the Dukedom is in the Peerage of Ireland, it refers to Abercorn, West Lothian, and the Duke also bears four titles in Peerage of Scotland and two in the Peerage of Great Britain, and is one of only three peers who have titles in those three peerages. The Duke of Abercorn also claims the French title of Duke of Châtellerault, created in 1548.