Eugene Township is one of five townships in Vermillion County, in the U.S. state of Indiana.

As of the 2020 census, its population was 1,714 (down from 2,025 at 2010[3]) and it contained 855 housing units.

According to the 2010 census, the township has a total area of 35.34 square miles (91.5 km2), of which 34.93 square miles (90.5 km2) (or 98.84%) is land and 0.41 square miles (1.1 km2) (or 1.16%) is water.

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

The township contains five cemeteries: Brown, Eugene, Groenendyke, Isle and Patrick.