Tribes Hill is a census-designated place located in the Towns of Mohawk and Amsterdam in Montgomery County, New York, United States. The population was 1,003 at the 2010 census. One theory is the name is based on this location having been a gathering spot for the Mohawk nation, the dominant Iroquois tribe in the area during colonial times. Tribes Hill spans the border of the Town of Mohawk and Town of Amsterdam, approximately five miles west of the City of Amsterdam on Route 5.