Thomas Ragon was the eighth Abbot of Vale Royal Abbey, Cheshire. His term of office lasted from 1351 to 1369. His abbacy was predominantly occupied with recommencing the building works at Vale Royal—which had been in abeyance for a decade—and the assertion of his abbey's rights over a satellite church in Llanbadarn Fawr, Ceredigion, which was also claimed by the Abbot of Gloucester.