Castlereagh (disambiguation)
From Wikipedia, the free encyclopedia
Castlereagh may refer to:
- Robert Stewart, Viscount Castlereagh (1769–1822), an Anglo-Irish politician
- Castlereagh Borough Council, a local council near Belfast, Northern Ireland
- Castlereagh River, a river in northern New South Wales, Australia
- Castlereagh Highway, a New South Wales state highway
- Castlereagh, New South Wales, a suburb of Sydney, Australia
- Castlereagh, Nova Scotia, a former village located next to Bass River, Nova Scotia, settled by Ulster-Scots and named after Viscount Castlereagh
- Castlerea, County Roscommon, Republic of Ireland