Mervyn Richard Wingfield, 8th Viscount Powerscourt KP MVO was an Anglo-Irish peer.
- Occupation
- military personnel
- Position held
- member of the House of Lords, justice of the peace, Lord Lieutenant of Wicklow, Custos rotulorum
- Citizenship
- United Kingdom
- Born
- July 16, 1880
- Died
- March 21, 1947