Church of Saint Ildefonso
| Igreja de Santo Ildefonso | |
|---|---|
| 41°08′46″N 8°36′24″W / 41.14611°N 8.60667°W | |
| Location | Porto |
| Country | Portugal |
| Denomination | Roman Catholic |
| Architecture | |
| Style | proto-Baroque |
| Groundbreaking | 1709 |
| Completed | 18 July 1739 |
The Igreja de Santo Ildefonso is an eighteenth-century church in Porto, Portugal. The church is located near Batalha Square.