Otterville Township is one of fourteen townships in Cooper County, Missouri, USA.

As of the 2000 census, its population was 913.

[1] According to the United States Census Bureau, Otterville Township covers an area of 27.24 square miles (70.56 square kilometers); of this, 27.24 square miles (70.55 square kilometers, 99.99 percent) is land and 0.01 square miles (0.02 square kilometers, 0.03 percent) is water.

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

The township contains these two cemeteries: Saint Josephs and Shackleford.