John Ridewall (fl. 1331–1340), also known as John of Musca, was the 54th regent master of the Franciscans at Oxford. He received his doctorate in theology around 1331 and was regent in 1331–1332. He was still living in October 1340, when he was in Basel. His known writings are:

The Commentarius super Fulgencium, better known as Fulgentius metaforalis, has been edited at least twice, firstly by Hans Liebeschuetz in 1926 and more recently and completely by Ralph Hanna in 2023. It was designed to offer material to preachers by giving a moralizing treatment of classical mythology. It is found both as a marginal text surrounding the text of Fulgentius, a format common for commentaries, and as an independent treatise unaccompanied by Fulgentius' text. It is preserved in nine manuscripts, but nowhere complete. A majority of the manuscripts are of German origin. Some manuscripts contain an anonymous short continuation on the four virtues, De quattuor virtutibus, ascribed to a nameless "chancellor of Paris". Both texts are found in the illustrated manuscript Palatinus Latinus 1066 from southern Germany. The Liber cosmographiae of John de Foxton has been called a continuation of Fulgentius metaforalis. Ridewall's work also furnished material for two further condensations, the Ymagines Fulgencii and Prudentia depingebatur.
Two further works are sometimes attributed to Ridewall: