La plus que lente, L. 121 (French pronunciation: ​[laplyskəˈlɑ̃t], "The more than slow"), is a waltz for solo piano written by Claude Debussy in 1910, shortly after his publication of the Préludes, Book I. The piece debuted at the New Carlton Hotel in Paris, where it was transcribed for strings and performed by a popular Romany band.

Original Name La plus que lente
Date of composition 1910 ((arranged by the composer for orchestra with cymbalom))
Premiered 1911, March 31st in Paris, France
First published 1910, Durand in Paris, France
Type Waltz
Catalogue L. 121
Instruments Piano
Autotranslations beta Claude Debussy: The more than slow, L. 121
Claude Debussy: The more than slow, L. 121
Claude Debussy: The more than slow, L. 121