York Township is one of fourteen townships in Dearborn County, Indiana. As of the 2010 census, its population was 1,221 and it contained 471 housing units.
York Township was founded in 1841. A majority of the early settlers being natives of New York caused the name to be selected.
According to the 2010 census, the township has a total area of , all land.
The township contains one cemetery, West Fork.