Lafayette Township is one of twenty townships in Allen County, Indiana, United States.

As of the 2010 census, its population was 3,354.

[2] According to the United States Census Bureau, Lafayette Township covers an area of 34.61 square miles (89.64 km2); of this, 34.55 square miles (89.48 km2) is land and 0.062 square miles (0.16 km2), or 0.18 percent, is water.

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

The township contains Fogwell Cemetery.