Mariel of Redwall is a fantasy novel by Brian Jacques, published in 1991. It is the fourth book published and sixth chronologically in the Redwall series.

James Brian Jacques was an English author known for his Redwall series of novels and Castaways of the Flying Dutchman series. He also completed two collections of short stories entitled The Ribbajack & Other Curious Yarns and Seven Strange and Ghostly Tales.