Castle Ward was a rural district of the administrative county of Northumberland, England from 1894 to 1974, covering an area north-west of the city of Newcastle upon Tyne. It was named after the historic Castle ward of Northumberland. The council offices were located in Ponteland.^[1]

Castle Ward Rural District
Area
• 1901	85,124 acres (344.5 km2)
• 1961	82,827 acres (335.2 km2)
• Coordinates	55°03′N 1°45′W / 55.05°N 1.75°W / 55.05; -1.75
Area transferred
• 1935	1,597 acres (6.5 km2) to Newcastle upon Tyne
• 1935	687 acres (2.8 km2) to Gosforth Urban District and Newburn Urban District
• 1969	456 acres (1.8 km2) to Seaton Valley Urban District
Population
• 1901	9,252
• 1961	24,856
History
• Preceded by	Castle Ward Rural Sanitary District
• Origin	Local Government Act 1894
• Created	1894 (1894)
• Abolished	31 March 1974 (1974-03-31)
• Succeeded by	Castle Morpeth City of Newcastle upon Tyne
Status	Rural district
Government
• HQ	Ponteland
• Motto	Onward
Contained within
• County	Northumberland
• Police force	Northumberland Constabulary

In 1974, under the reforms established by the Local Government Act 1972, most of the district was merged to form part of Castle Morpeth, while the southernmost part joined the metropolitan borough of Newcastle in the new metropolitan county of Tyne & Wear. Castle Ward, one of the modern day electoral wards of the City of Newcastle, takes its name from the district and shares some of its territory, such as in Dinnington.^[2]