A Zydeco rub-board is a percussion instrument that is commonly used in Zydeco music. It consists of a corrugated metal or wooden board that is attached to a frame or box, with a handle at one end. The player holds the handle and rubs a thimble or metal scraper across the corrugations to create a rhythmic sound.

The Zydeco rub-board is an important part of Zydeco music, and its use dates back to the early days of the genre in the late 19th and early 20th centuries. It is often combined with other instruments such as the accordion, fiddle, and guitar to create a distinctive sound that is characteristic of Zydeco music.