Canning Half Tide Dock on the River Mersey, in Liverpool, England, is a half tide dock and is part of the Port of Liverpool. It is situated in the southern dock system, connected to Canning Dock to the east and Albert Dock to the south.

The dock was originally the site of the Gut, the entrance to the Dry Dock which was later to become Canning Dock.^[4] Canning Half Tide Dock was built by Jesse Hartley between 1842 and 1844, also opening in 1844.^[4][5]

Originally having two 45 ft (14 m) lock entrances to the Mersey,^[4] the north gates were sealed with a concrete dam in 1937.^{[citation needed]} The south gates are modified to accommodate a valve to admit river water. To the outside of the river entrances are two granite octagonal gatemen's shelters, also designed by Hartley.^[4] An island built of masonry, which has its own lighthouse, separates the river entrances.^[4]

Adjacent to the dock is the Pilotage Building, which opened in 1883^[4] to manage the river's pilot boats. The building was converted in 1980 by the Building Design Partnership for use as a museum.^[4] Both this building and the dock itself are now part of Merseyside Maritime Museum.