| St Dionis Backchurch | |
|---|---|
 | |
 | |
| Location | London |
| Country | United Kingdom |
| Denomination | Anglican |
| Architecture | |
| Architect(s) | Christopher Wren |
| Style | Baroque |
| Demolished | 1878 |
St Dionis Backchurch was a parish church in the Langbourn ward of the City of London. Of medieval origin, it was rebuilt after the Great Fire of London to the designs of Christopher Wren and demolished in 1878.