West Chester Township is one of the thirteen townships of Butler County, Ohio, United States, located in the southeastern corner of the county. It is situated between Sharonville and Liberty Township, about 18 miles (29 km) north of Cincinnati, and is included in the Cincinnati Metropolitan Area. Exits 19, 21 and 22 off Interstate 75 serve West Chester. It is the most populous township in Ohio, with a population at the 2010 census of 60,958.