Kiskiminetas Township is a township in Armstrong County, Pennsylvania, United States. The population was 4,604 at the 2020 census, a decrease from the figure of 4,800 tabulated in 2010, making it the most populous township or borough in the county.

The Kiskiminetas River is a tributary of the Allegheny River, approximately 27 miles (43 km) long, in Western Pennsylvania in the United States. The region stretching from the northern side of Harmar Township, Pennsylvania to the Kiskiminetas towns is often referred to by the locals as the Alle-Kiski Valley after the rivers.