Bolgoda Lake or Bolgoda River (Sinhala: බොල්ගොඩ වැව, Tamil: போல்கோடா ஏரி) is a freshwater lake in the Western Province of Sri Lanka, straddling the border between Colombo District and Kalutara District.

The waterfront properties around the lake are owned by wealthy and notable individuals such as Mangala Samaraweera and Susanthika Jayasinghe.

Illegal constructions near the lake are a major emerging issue, with the Sri Lankan government claiming that 90% of constructions have not obtained the required environmental approval.

[5] Pollution and irregular disposal of garbage are some other concerns facing the lake and its surroundings.

[2] The Sri Lanka Navy and the Police are involved in efforts to protect the wetlands.