|Foxton Locks and Inclined Plane|
|Built||1814 and 1900|
|Architect||Benjamin Bevan (Canal & Locks), Gordon Cale Thomas (Inclined Plane)|
|Governing body||Canal & River Trust|
|Official name||Foxton Locks, Grand Union Canal Leicester line|
|Designated||7 December 1966|
|Official name||Lock-Keeper's Cottage adjacent to Foxton Top Lock|
|Designated||9 March 1989|
|Official name||Lock-Keeper's Cottage with adjoining stable block and Foxton Canal Craft Shop, adjacent to Foxton Bottom Lock, Grand Union Canal|
|Designated||9 March 1989|
|Official name||Inclined Plane immediately east of Foxton Locks|
|Designated||24 January 1973|
Foxton Locks (grid reference ) are ten canal locks consisting of two "staircases" each of five locks, located on the Leicester line of the Grand Union Canal about 3 miles (5 km) west of the Leicestershire town of Market Harborough. They are named after the nearby village of Foxton.
Alongside the locks is the site of the Foxton Inclined Plane, built in 1900 to resolve the operational restrictions imposed by the lock flight. It was not a commercial success and only remained in full-time operation for ten years. It was dismantled in 1926, but a project to re-create it commenced in the 2000s, since the locks remain a bottleneck for boat traffic.
Staircase locks are used where a canal needs to climb a steep hill, and consist of a group of locks where each lock opens directly into the next, that is, where the bottom gates of one lock form the top gates of the next. Foxton Locks are the largest flight of such staircase locks on the English canal system. The locks are equipped with side pounds, with white paddles emptying a lock into a side pound, and red paddles filling the next lock downstream from the pound. This saves water compared to the more common riser staircases, since changing the direction of traffic does not require emptying/filling almost all the locks.: 44
Building work on the locks started in 1810 and took four years.: 3 Little changed until the building of the inclined plane resulted in the reduction in size of some of the side pounds. While the inclined plane was in operation the locks were allowed to fall into decline to an extent and in 1908 the committee released £1,000 to bring the locks back into full (nightly) operation.: 35 
The locks are usually manned during the cruising season from Easter to October and padlocked outside operating hours. This is done to prevent water shortages due to misuse and to ensure a balance between those wishing to ascend and descend. There can be lengthy delays at busy times but the actual transit should take approximately 45 minutes to one hour to complete; it is made quicker by the fact that the locks are narrow beam and the gates are light.
The Grade II* listed locks are a popular tourist attraction and the county council has created a country park at the top. At the bottom, where the junction with the arm to Market Harborough is located, there are two public houses, a shop, trip boat and other facilities. The area is popular with ramblers, interested enthusiasts and similar.
The Foxton Canal Museum is located in the former boiler house for the plane's steam engine. The museum covers the history of the locks and the plane, the lives of the canal workers, and other aspects of the local canal. There is also a collection of Measham pottery. The museum opened in 1989 and is accredited by the Museums, Libraries and Archives Council.
- Bingley Five Rise Locks in West Yorkshire
- Bingley Three Rise Locks in West Yorkshire
- Foxton Inclined Plane Trust
- Watford Locks in Northamptonshire
- Caen Hill Locks near Devizes, Wiltshire
- Fourteen Locks near Newport, South Wales
- Tardebigge Locks near Bromsgrove, Worcestershire
- "British Waterways Press release". 4 April 2012. Retrieved 19 April 2012.
- Historic England. "Foxton Locks (1360753)". National Heritage List for England. Retrieved 19 April 2012.
- Historic England. "Top Lock cottage (1360774)". National Heritage List for England. Retrieved 19 April 2012.
- Historic England. "Bottom Lock cottage (1061459)". National Heritage List for England. Retrieved 19 April 2012.
- Historic England. "Inclined Plane (1018832)". National Heritage List for England. Retrieved 19 April 2012.
- "The Foxton Boat Lift: A Brief History". Foxton Inclined Plane Trust. Retrieved 21 May 2020.
- Foxton Locks and Inclined Plane: A Detailed History. Department of Planning and Transportation, Leicestershire County Council. 1988. ISBN 0-85022-191-9.
- McKnight, Hugh (1987). The Shell Book of Inland Waterways. David & Charles. pp. 46–49. ISBN 0-7153-8239-X.
- "Foxton Locks achieves European recognition". Waterscape. 25 November 2008. Retrieved 9 August 2009.
- "Welcome to Foxton Canal Museum". Foxton Inclined Plane Trust. Archived from the original on 2 May 2010. Retrieved 21 May 2020.
- "Canal Boats with Loads Elevated 75ft". Popular Mechanics. 7 (10): 1010–1011. October 1905.