Clay Township is a township in Clay County, Iowa, USA.

When it was created in 1859, it comprised the entire county.

[1] Clay Township covers an area of 36.35 square miles (94.1 km2) and contains one incorporated settlement, Royal.

According to the USGS, it contains three cemeteries: Center, TriMello and Willow Creek.

This article about the geography of Clay County, Iowa is a stub.