Gibson Township is one of thirteen townships in Washington County, Indiana, United States.

As of the 2020 census, its population was 1,105 and it contained 491 housing units.

[1] According to the 2010 census, the township has a total area of 51.13 square miles (132.4 km2), of which 50.97 square miles (132.0 km2) (or 99.69%) is land and 0.16 square miles (0.41 km2) (or 0.31%) is water.

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