Busu River
Bridge over the Busu
Location
Country	Papua New Guinea
Region	Morobe Province
Physical characteristics
Source
• location	Saruwaged Range, Papua New Guinea
• coordinates	6°19′00″S 147°05′11″E / 6.31667°S 147.08639°E / -6.31667; 147.08639
• elevation	2,270 m (7,450 ft)
Mouth	Huon Gulf
• coordinates	6°43′44″S 147°03′05″E / 6.72889°S 147.05139°E / -6.72889; 147.05139
• elevation	0 m (0 ft)
Length	75 km (47 mi)[1]
Basin size	1,311.32 km2 (506.30 sq mi)[1]
Discharge
• location	Near mouth
• average	50.02 m3/s (1,766 cu ft/s)[1]

The Busu River is a river located near Wagang, Lae in Morobe Province of Papua New Guinea.^[2] It is the fastest-flowing river in Papua New Guinea^[3] and the sixth-fastest in the world.^{[citation needed]}