United Counties may refer to one of the following places:
Australia Electoral district of United Counties of Murray and St Vincent, an electoral district of the Australian state of New South Wales, established 1856, dissolved 1859
United Kingdom Northamptonshire, Bedfordshire, and surrounding counties, as used by: United Counties League United Counties Omnibus
Ontario, Canada Some current and historical counties in the province of Ontario, Canada United Counties of Leeds and Grenville, established 1850 United Counties of Prescott and Russell, established 1820 United Counties of Stormont, Dundas and Glengarry, established 1850 United Counties of Lincoln, Welland and Haldimand, Ontario, established 1849, since dissolved United Counties of Northumberland and Durham, Ontario, established 1849, dissolved in 1974