St Cadoc's or St Cadocs or St Catwg's may refer to:
Churches St Cadoc's Church, Caerleon, Newport St Cadoc's Church, Cheriton, Gower, Swansea St Catwg's Church, Cwmcarvan, Monmouthshire St Cadoc's Church, Glynneath, Neath Port Talbot St Catwg's Church, Gelligaer, Caerphilly St Cadoc's Church, Llancarfan, Vale of Glamorgan St Cadoc's Church, Llangattock-juxta-Usk, Monmouthshire St Cadoc's Church, Llangattock Lingoed, Monmouthshire St Cadoc's Church, Llangattock Vibon Avel, Monmouthshire St Cadoc's Church, Pendoylan, Vale of Glamorgan St Cadoc's Church, Penrhos, Monmouthshire St Cadoc's Church, Raglan, Monmouthshire
Other uses St Cadoc's Hospital, in Caerleon, Newport, Wales St Cadocs/Penygarn, an electoral ward in the county borough of Torfaen, Wales St Cadoc's Y.C., a Scottish football club St Cadoc, Halfway, a parish in the Roman Catholic Diocese of Motherwell, Scotland
See also Cadoc