Wootton Rivers Lock, also called Wootton Rivers Bottom Lock, is a lock on the Kennet and Avon Canal at Wootton Rivers, Wiltshire, England.

Wootton Rivers Bottom Lock was built during the canal's construction between 1794 and 1810. The lock has a rise/fall of 8 ft 0 in (2.43 m). The parish of Wootton Rivers has three more locks upstream: Heathy Close, Brimslade, and Wootton Top Lock.

The lock and its road bridge are Grade II listed.