The Vall de Núria Rack Railway (Catalan: Cremallera de Núria, IPA: [kɾəməˈʎeɾə ðə ˈnuɾiə]) is a mountain railway in the Pyrenees mountains in the north of the Catalonia region of Spain.

As Queralbs is the highest point in the valley reachable by road, the rack railway is – along with the old footpath / mule track – the only way to reach the shrine and ski resort at Núria.

The original stock consisted of passenger cars hauled by four six-wheeled electric locomotives, numbered E1-E4, built by SLM and BBC in 1930–31.

The line also owns a diesel rack locomotive, D9, used on works trains and to push the snow plough.

Rolling stock of the Montserrat Rack Railway are listed, if they are or were also used in Vall Núria **) Original roster, built by Vereinigte Westdeutsche Waggonfabrik A.G., is said to have been formed of Affw 2, ABffw 11–15, Bffw 21–28 and Aaffw 51.