John Eynon, OSB († 1539) was a monk of the Order of Saint Benedict who acted as the pastor of the parish of St Giles in Reading, England.
Copies of Robert Aske's proclamation setting forth the reasons behind the Pilgrimage of Grace had circulated at Reading.
He was executed on 15 November 1539 at the gateway to Reading Abbey, along with Hugh Faringdon and John Rugg.
Rugg was a prebendary at Chichester, but had retired to live at Reading Abbey.
[2] All three men were declared to be martyrs and beatified by Pope Leo XIII in 1895.