is a city in Greene County, Ohio, United States. The population was 7,009 at the 2000 census. It is part of the Dayton Metropolitan Statistical Area.
Bellbrook was first settled in 1814. The name derives from one of the city's founders, Stephen Bell (eponymous with the local elementary school).
Initially a village, Bellbrook grew through annexation of territory from surrounding Sugarcreek Township. The first annexation, in 1970, helped push the population over 5,000 and led to Bellbrook achieving city status in 1974. With large amounts of buildable land, the area added over 1,000 housing units since the annexation.
On November 8, 2005, Sugarcreek Township residents defeated by 22 votes a measure supporting the creation of a commission to study a merger with Sugarcreek Township. Bellbrook voters approved the study. However, the measure required both the city and the township to approve the study. . Bellbrook and Sugarcreek Township voted again on November 4, 2008 to create a merger study commission.
Some of Bellbrook's former and current residents include actor and comedian Jonathan Winters and writer Erma Bombeck.