Willington is a town in Tolland County, Connecticut, United States. The population was 6,041 at the 2010 census.
The Willimantic River borders the town on the west. Willington is about 25 miles northeast of Hartford on Interstate 84, which also provides a connection to Boston, via the Massachusetts Turnpike. Providence, RI is accessible via U.S. Route 44. Larger communities nearby include Coventry, Stafford, Tolland, and Willimantic. The University of Connecticut is located in adjacent Mansfield. A new public library (formerly located within Hall Memorial School) opened in autumn 2006.
In 1720 a party of eight men, originally from England, bought 16,000 acres of the region and called it Wellington. Willington was incorporated in May 1727.