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is a Borough in Union County, New Jersey, United States. As of the United States Census, 2000, the borough population was 7,675.
Kenilworth was incorporated as a borough by an Act of the New Jersey Legislature on May 13, 1907, from portions of Cranford and Union Township, based on the results of a referendum held on June 18, 1907.
The borough is bordered to the north and east by Union Township, to the southeast by Roselle Park, to the southwest by Cranford and to the northwest by Springfield Township.
According to the United States Census Bureau, the borough has a total area of 2.1 square miles (5.5 km