The Sleaford Navigation is a waterway in Lincolnshire, England, that connects the town of Sleaford to the River Witham. It was constructed in the early 19th century to facilitate the transport of goods, particularly agricultural products, from the surrounding areas. The navigation spans approximately 11 miles and includes several locks to manage water levels. The waterway is part of the broader network of canals in the UK, which played a crucial role in the industrial revolution. Today, the Sleaford Navigation is used for leisure activities such as boating and fishing, contributing to local tourism and recreation.