The Sambre–Oise Canal (French: Canal de la Sambre à l'Oise) is located in northern France. It forms a connection between the river Sambre (Meuse basin) at Landrecies and the Oise (Seine basin) at Tergnier. The canal is 71 km long, and has 38 locks. It is only suited for small boats, maximum length 38.5 m.