The Guà Âgañji, also transcribed Gungganyji, Gunggandji, Kongkandji, and other variations, are an Aboriginal Australian people of the state of Queensland.
The Guà Âgañji speak Gungay, a dialect of the Yidiny language.
Norman Tindale's estimate of Guà Âgañji lands sets them at . They are rainforest people, living around the Cape Grafton peninsula, west of the Prior Range, and their southern extension runs down to Palmer Point (Wararitji) and the mouth of Mulgrave River.