| Gilliat | |
| Pushpin Map: | Australia Queensland |
| Pushpin Map Caption: | Location of Gilliat river mouth in Queensland |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | Territory |
| Subdivision Name2: | Queensland |
| Subdivision Type3: | Region |
| Subdivision Name3: | Gulf Country |
| Source1: | Mount Edna |
| Source1 Location: | Swords Range, Gulf Country, Australia |
| Source1 Elevation: | 198m (650feet) |
| Mouth: | Cloncurry River |
| Mouth Location: | Australia |
| Mouth Coordinates: | -20.0631°N 141.2039°W |
| Mouth Elevation: | 82m (269feet) |
| Extra: | [1] |
The Gilliat River is a river in the Gulf Country region of Queensland, Australia.
The headwaters of the river are under Mount Edna in the Swords Range, it then flows in a northerly direction and crosses the Landsborough Highway near Hutt Mill and then continues north west. It then forms a series of braided channels as it continues through the mostly uninhabited Gulf Country savannah. The river crosses the Flinders Highway approximately 20km (10miles) west of Julia Creek. Many channels then flow through the Cockatoo Waterhole and then the river discharges into the Cloncurry River of which it is a tributary.