Sir Adam Beck Hydroelectric Power Stations are two hydroelectric power stations in Niagara Falls, Ontario, Canada. The stations divert water from the Niagara and Welland Rivers above the falls which is then released into the lower portion of the river, and together produce up to 1,926 MW.

Adam Beck I contains 10 generators and first produced power in 1922. It was originally called the Queenston Chippawa power station and was renamed after Adam Beck in 1950 on the twenty fifth anniversary of his death. The water is diverted through the Chippawa-Queenston Power Canal canal from the Welland River. Adam Beck II contains 16 generators and first produced power in 1954. The water is diverted from the Niagara River above the falls through underground pipes. A reservoir was created that permits the holding of water, diverted during the night, for use during the day. Adam Beck II is currently undergoing major modification in the form of the Niagara Tunnel Project in order to improve its generation output. This new tunnel is expected to be in operation by late 2013.