The Lynton and Lynmouth Cliff Railway is a water-powered funicular railway joining the twin towns of Lynton and Lynmouth on the rugged coast of North Devon in southwest England.

Lynton and Lynmouth are separated by a high cliff, making it hard for people and goods to move between them. In the late 19th century, interest arose in building a funicular or cliff lift to join them. The civil engineer George Croydon Marks played a key role in both its design and bringing in financing from his business partner, Sir George Newnes. Local contractor Robert Jones was involved in designing the funicular's innovative braking system and the line's construction and maintenance in the first decades of its operation.

In 1887, construction commenced and a year later, an Act of Parliament authorised the Lynmouth & Lynton Lift Company to operate it. The completed railway was opened on Easter Monday 1890; it has been in continuous use since. While early use was largely focused on moving freight, the funicular railway became popular with tourists and it became mostly used for passenger travel. Its flat platforms were converted into passenger carriages in 1947. It is the world's highest and steepest water-powered cliff railway in operation.