The River Dhoo () is a river on the Isle of Man. The river rises in Marown and flows east towards Douglas through the central valley of the island, passing Crosby and Union Mills before meeting with the River Glass on the outskirts of Douglas where it flows out to sea through Douglas Harbour.
The River Dhoo is a river in the Isle of Man that originates in Marown and flows towards Douglas, passing by Crosby and Union Mills before joining the River Glass near Douglas's outskirts. It then discharges into Douglas Harbour.