Sheffield Lock, at grid reference SU648706, is a lock on the Kennet and Avon Canal, in the civil parish of Burghfield in the English county of Berkshire. It is also sometimes, incorrectly, known as Shenfield Lock. Sheffield Lock was built between 1718 and 1723 under the supervision of the engineer John Hore of Newbury, and this stretch of the river is now administered by Canal & River Trust and known as the Kennet Navigation. It has a rise/fall of 2 ft 2 in (0.66 m).