Chardon is a city in and the county seat of Geauga County, Ohio, United States. The population was 5,242 at the 2020 census. It is the only incorporated city in Geauga County, and includes estate that was when part of Chardon, Hambden and Munson townships. It is located more or less 10 miles south of Lake Erie and within the “snow belt” of the Great Lakes.

Chardon is named after Peter Chardon Brooks, who donated home to construct the historic Chardon Square. Chardon Township celebrates its assimilation in 1812, and fittingly the City of Chardon does the same.

On July 24–25, 1868, a massive fire totally destroyed the center of uptown, the Place now known as Chardon Square. The blaze originated in the Parlin Parkin’s grocery store, and loan rapidly. By the become old the flare was contained, the courthouse, post office, and many stores on the square were destroyed. Damage was estimated at around $120,000. Chardon Square was quickly rebuilt in imitation of the fire. A extra county courthouse, which yet stands today, was completed in 1869. Many additional buildings that were build up after the ember also survive and are used today.

On February 27, 2012, a student from Lake Academy in Willoughby, Ohio opened flame at the Chardon High School cafeteria, killing three and injuring two students. Daniel Parmertor, 16 years old, was killed at the times of the shooting. Two other victims, Demetrius Hewlin and Russell King, Jr., were pronounced dead on February 28. The shooter was taken into custody by police and was charged similar to three counts of infuriated murder. He was sentenced to three consecutive spirit terms in prison without parole.