Newrest Wagons-Lits, formerly Compagnie internationale des wagons-lits (lit. International Sleeping-Car Company), also CIWL, Compagnie des Wagons-Lits, or just Wagons-Lits, is a division of Newrest particularly known for its on-train catering and sleeping car services, as well as being the historical operator of the Orient Express.

The Orient Express was a showcase of luxury and comfort at a time when travelling was still rough and dangerous. CIWL soon developed a dense network of luxury trains all over Europe, whose names are still remembered today and associated with the art of luxury travel. Examples of such luxury travel include the Blue Train, the Golden Arrow, the North Express and many more. CIWL became the first and most important modern multinational dedicated to transport, travel agency, hospitality with activities spreading from Europe to Asia and Africa.

Now part of the French Newrest group, Compagnie Internationale des Wagons-Lits (et des grands express européens) (English: The International Sleeping-Car (and European Great Expresses) Company) was founded by the Belgian Georges Nagelmackers in 1872, in Belgium. CIWL quickly established itself as the premier provider and operator of European railway sleepers and dining cars during the late 19th and the 20th centuries.

The holding company, CIWLT, is a fully owned subsidiary of Accor, the historical brands were transferred to Wagons-Lits Diffusion in 1996.