Sedgwick Township is a township in Harvey County, Kansas, United States.

Sedgwick Township covers an area of 35.74 square miles (92.6 km2) and contains one incorporated settlement, Sedgwick.

According to the USGS, it contains one cemetery, Hillside.

The streams of East Emma Creek, Emma Creek, Kisiwa Creek, Mud Creek, Sand Creek and West Emma Creek run through this township.

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