Albert Lock, is a lock on the Jamestown Canal which by-passes an unnavigable section of the River Shannon between Drumsna and Jamestown, in Co. Leitrim

The canal and Lock are located in Co. Roscommon.

Located behind Albert Lock and just off the Jamestown canal on the River Shannon, is Albert Lock Marina, a 200 berth marina with pontoon jetties, powered berthing with all services on site including friendly resident mechanic, boat hoist and lift in/out facility and winter hardstand storage space.