Mekong River Protection Act of 2011 - Directs the Secretary of the Treasury to instruct the United States Executive Directors of the World Bank and the Asian Development Bank to oppose the provision of any loan or financial or technical assistance for the construction of hydroelectric dams or electricity transmission systems in the Mekong River Basin unless the Secretary submits a related report providing certain assurances with respect environmental protection, public health, economic effect, and resettlement concerns to Congress.
Defines "World Bank" as the International Bank for Reconstruction and Development and the International Development Association.