Kimito is a former municipality of Finland. On January 1, 2009, it was consolidated with Dragsfjärd and Västanfjärd to form the new municipality of Kimitoön. Prior to the consolidation, it was one of the four municipalities located on Kimito island, the other three being Västanfjärd, Dragsfjärd and Halikko.
It is located in the province of Western Finland and is part of the Finland Proper region. The municipality had a population of 3,301 (2004-12-31) and covered an area of 320.17 km² (excluding sea) of which 2.29 km² is inland water. The population density was 10.38 inhabitants per km².