Mott Township is one of sixteen townships in Franklin County, Iowa, United States. As of the 2010 census, its population was 498 and it contained 237 housing units.
Mott Township was organized in 1879. The Mott family were prominent landowners.
As of the 2010 census, Mott Township covered an area of ; of this, (99.42 percent) was land and (0.58 percent) was water.
The township contains Trinity Cemetery.