Sullivan Township is a township in Grant County, Kansas, USA.

Sullivan Township covers an area of 215.4 square miles (558 km2) and contains no incorporated settlements.

According to the USGS, it contains two cemeteries: Golden and Zionville.

The streams of North Fork Cimarron River and Sand Arroyo Creek run through this township.

This article about a location in Grant County, Kansas is a stub.