St Beuno's Church, Trefdraeth is the medieval parish church of Trefdraeth, a hamlet in Anglesey, north Wales. Although one 19th-century historian recorded that the first church on this location was reportedly established in about 616, no part of any 7th-century structure survives; the oldest parts of the present building date are from the 13th century. Alterations were made in subsequent centuries, but few of them during the 19th century, a time when many other churches in Anglesey were rebuilt or were restored.