The Gulngai were an indigenous Australian rainforest people of the state of Queensland. They are not to be confused with the Kuringgai.
Gulŋay was one of the Dyirbalic languages, and a dialect of Dyirbal.
Norman Tindale set their lands at some 200 square miles (520 km2), situated around the Tully River below Tully Falls, and the Murray River. Their southern border lay on the range above Kirrama.