| St Margaret of Antioch | |
|---|---|
Eglwys y Santes Fererid | |
 | |
 | |
| 51°29′34″N 3°09′17″W / 51.4929°N 3.1547°W | |
| Denomination | Church in Wales |
| Previous denomination | Roman Catholic |
| Website | The |
| History | |
| Status | Active |
| Founded | 11th century |
| Dedication | St Margaret of Antioch |
| Architecture | |
| Functional status | Mother church |
| Heritage designation | Grade I |
| Designated | 19 May 1975 |
| Architect(s) | John Prichard |
| Completed | 1870 (tower 1926) |
| Specifications | |
| Number of spires | none |
| Materials | Stone |
| Bells | 1 |
| Administration | |
| Diocese | Diocese of Llandaff |
| Parish | Roath |
St Margaret's Church (Welsh: Eglwys y Santes Fererid, dedicated to St Margaret of Antioch) is a nineteenth-century Church in Wales parish church in the suburb of Roath, Cardiff, Wales. It includes the mausoleum of the Marquises of Bute.