Warner William Westenra, 2nd Baron Rossmore, was an Anglo-Irish landowner and politician.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of Ireland, member of the 1st Parliament of the United Kingdom, member of the 18th Parliament of Great Britain
- Citizenship
- United Kingdom of Great Britain and Ireland, Kingdom of Great Britain
- Born
- October 14, 1765
- Died
- August 10, 1842