Greenfield Township is one of ten townships in Orange County, Indiana, United States.

As of the 2020 census, its population was 746 and it contained 494 housing units.

[1] According to the 2010 census, the township has a total area of 43.14 square miles (111.7 km2), of which 41.22 square miles (106.8 km2) (or 95.55%) is land and 1.92 square miles (5.0 km2) (or 4.45%) is water.

[3] (This list is based on USGS data and may include former settlements.)