Hazleton Township is one of sixteen townships in Buchanan County, Iowa, United States.

Hazleton Township covers an area of 36.36 square miles (94.2 km2) and contains one incorporated settlement, Hazleton.

The unincorporated community of Bryantsburg is also located in the township.

According to the USGS, it contains five cemeteries: Floral Hills Memorial Gardens, Fontana, Hazleton, Kint and Saint Marys.

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