Fennville is a city in Allegan County in the U.S. state of Michigan. The population was 1,745 at the 2020 census.

Located on M-89 on the boundary between Manlius Township to the north and Clyde Township to the south, Fennville is located very nearly 11 miles (18 km) southeast of the city of Saugatuck and nearly 13 miles (21 km) west-northwest of the city of Allegan. It is very nearly 13 miles (21 km) south of Holland and nearly 16 miles (26 km) northeast of South Haven.

The “official” and widely trendy account of how the city came to be known as Fennville, is that an early white settler by the herald of Elam Atwater Fenn built a wise saying mill in the immediate vicinity of the current community. This led to people referring to the unity as “Fenn’s Mill” which became the name joined with the post office there. Some in front documents pluralized “Mill” to render “Fenn’s Mills.” The first road through what was to be Fennville was built by Harrison Hutchins and James McCormick in 1837.

A fire (possibly joined to the Great Chicago Fire or Great Michigan Fire) destroyed the village in October 1871. About that time, the paperwork (timetables and such) for the recently completed Chicago and Michigan Lake Shore Railroad arrived which identified the community’s station as “Fennville.” This was thought by some at the time (including Hutchins) to have been the upshot of clerical error. However, Fenn himself recorded that the correct in pronounce had been suggested by and mutually agreed upon among sure leaders of the community in conjunction taking into account the initiation of the supplementary railroad station. The make known office name was then changed to “Fennville” to be of the same mind the station’s name. The community was officially incorporated as the village of Fennville upon February 20, 1889.