Kings County or King's County may refer to:
Places
Canada
- Kings County, New Brunswick
- Kings County, Nova Scotia
- Kings County, Prince Edward Island
- King's County (electoral district), abolished in 1892
Ireland
- County Offaly, formerly called King's County
- King's County (Parliament of Ireland constituency)
- King's County (UK Parliament constituency)
United States
- Kings County, California
- Kings County, New York, coextensive with Brooklyn
- Washington County, Rhode Island, called King's County until 1781
Ships
- Kings County (barque), a large sailing vessel named after Kings County, Nova Scotia
See also
- King County (disambiguation)