Viscount Massereene

John Clotworthy,
1st Viscount Massereene
Arms of Clotworthy: Azure, a chevron ermine between three chaplets or

Viscount Massereene is a title in the Peerage of Ireland. It was created in 1660, along with the subsidiary title of Baron Loughneagh. From 1665 to 1816 the Skeffington Baronetcy of Fisherwick was attached to the viscountcy and from 1756 to 1816 the Viscounts also held the title of Earl of Massereene. Since 1843 the peerages are united with titles of Viscount Ferrard, of Oriel and Baron Oriel, both in the Peerage of Ireland, and Baron Oriel, in the Peerage of the United Kingdom. The Viscount also holds the subsidiary titles of Baron Loughneagh (1660) and Baron Oriel (1790) in the Peerage of Ireland and Baron Oriel (1821) in the Peerage of the United Kingdom. As Baron Oriel, he sat in the House of Lords until 1999.

The family seat was Chilham Castle, near Canterbury, Kent.