Mulligan River
Location
State	Queensland
Region	Channel Country
Physical characteristics
Source
• location	Glenormiston Station
• coordinates	22°58′59″S 138°14′0″E / 22.98306°S 138.23333°E / -22.98306; 138.23333
• elevation	205 m[1]
Mouth	Eyre Creek
• coordinates	24°57′45″S 138°35′10″E / 24.96250°S 138.58611°E / -24.96250; 138.58611
• elevation	49 m[2]
Length	340 km
Basin features
River system	Lake Eyre Basin
Tributaries
• left	Ripunthala Creek
• right	Mulligan Creek, Sandy Creek, Kalabarkaloo Creek

The Mulligan River is a tributary of Eyre Creek in the Channel Country region of southwest Queensland. It is in the Lake Eyre Basin.^[3] The river rises in Glenormiston Station and flows generally south through Marion Downs Station into Eyre Creek, which ultimately feeds through the Warburton River into Lake Eyre.