Eglwys sydd â chysylltiadau hanesyddol arwyddocaol â’r sant o’r chweched ganrif y mae wedi’i henwi ar ei ôl, mae Eglwys Sant Tegfan yn gwasanaethu pentref sylweddol a ffyniannus Llandegfan. Er ei bod yn agos iawn at Borthaethwy mae'n gymuned ar wahân yn ei rhinwedd ei hun.
Mae gan yr eglwys gyfleusterau toiledau, ac yn y transept gogleddol, mae Capel yr Ysbryd Glân yn cael ei ddatblygu’n ofod y gellir ei ddefnyddio ar gyfer addoli, naill ai ar y cyd â phrif gorff yr eglwys neu ar wahân, ar gyfer cyfarfodydd, a gyda’r cynnwys ardal gegin.
A church with significant historic connections with the sixth century saint after which it is named, St Tegfan’s serves the substantial and thriving village of Llandegfan. Although it is very close to Menai Bridge it is a distinct community in its own right.
The church has toilet facilities, and in the North transept, the Chapel of the Holy Spirit is being developed into a space which can be used for worship, either in conjunction with the main body of the church or separately, for meetings, and with the inclusion of a kitchen area.