The Raudoja Reservoir () is a lake in Estonia. It is located on the Raudoja River in the village of Raudoja in Anija Parish, Harju County, near Kehra.
The reservoir is part of Tallinn water supply system and is connected to the Jägala, Pirita rivers via canals. Water flows from the Soodla Reservoir to the Raudoja Reservoir through a long diameter steel pipe. The water that keeps flowing in Raudoja river past the reservoir ends up in Soodla river.
The lake has an area of . The lake has an average depth of . It is long, and its shoreline measures . It has a volume of .
The construction of the reservoir took place in 1981.