Eadfrith of Leominster also known as Eadridus was a seventh century Catholic saint from Anglo-Saxon England. Although very little is known of his early life, he is an important figure in the process of Christianisation of Anglo-Saxon England. Eadfrith came from Northumbria and worked as a missionary to the Hwicce kingdom and in 660 converted King Merewalh of the Hwicce, a contemporary (and possibly son) of King Penda of Mercia. Eadfrith is known to history mainly through the hagiography of the Secgan Manuscript, but also the Anglo-Saxon Chronicle and the .