Killeen Castle may Refer to:

• Killeen Castle, Dunsany is a castle near Dunshaughlin, County Meath, Republic of Ireland.
• Killeen Castle, Castlegar is a castle in Castlegar, County Galway, Republic of Ireland.

• Riverhead (town), Suffolk County, New York
• River Heights
• River Heights (electoral district)
• River Heights (Manitoba riding)
• River Heights, UT
• River Heights, Utah
• River Hill, Columbia, Maryland
• River Hill, Columbia, MD
• River Hills
• River Hills, WI
• River Hills, Wisconsin
• River Hull
• River Humber
• River Huntspill
• River Idle
• River Ill
• Riverina
• Riverina District
• Riverine
• Riverine rabbit
• Riverines
• River Inger
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• River Inn
• River Irk