Codwyd yr Eglwys Sant Ioan yn Llys Bedydd yn 1874 a chafodd ei gysegru gan yr Esgob Llanelwy ar 16 Hydref, 1878. Ar y pryd, roedd yn eglwys dosbarth ym mhlwyf Hanmer. Disodlodd capel pren, a oedd wedi ei agor ar 12 Hydref, 1851.
Daeth Bettisfield yn blwyf ar wahân ar 24 Ionawr, 1880.
St. John's church at Bettisfield was erected in 1874, and was consecrated by the Bishop of St. Asaph on 16 October 1878. At that time, it was a district church within the parish of Hanmer. It replaced a wooden chapel, which had been opened on 12 October 1851.
Bettisfield became a separate parish on 24 January, 1880.