Llanddona transmitting station
| Mast height | 106.7 metres (350 ft) | 
|---|---|
| Coordinates | 53°18′25″N 4°07′42″W / 53.306944°N 4.128333°W | 
| Grid reference | SH583810 | 
| Built | 1958 | 
| BBC region | BBC Wales | 
| ITV region | ITV Cymru Wales | 
The Llanddona transmitting station ((/lænˈdɒnæ/; Welsh: [ɬanˈðɔna]); ⓘ) is a broadcasting and telecommunications facility, situated at Llanddona, near Beaumaris, on the isle of Anglesey, Wales (grid reference SH583810). It comprises a 106.7 metres (350 ft) guyed mast with antennas attached at various heights. It is owned and operated by Arqiva.