| Itaporanga d'Ajuda | |
| Settlement Type: | municipality |
| Official Name: | Municipio de Itaporanga d'Ajuda |
| Mapsize: | 250px |
| Pushpin Map: | Brazil |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Brazil |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | State |
| Subdivision Name: | Brazil |
| Subdivision Name1: | Northeast Region |
| Subdivision Name2: | Sergipe |
| Area Total Km2: | 757 |
| Population Total: | 34,709 |
| Population Density Km2: | auto |
| Timezone: | BRT |
| Utc Offset: | -3 |
| Coordinates: | -10.9978°N -37.3108°W |
| Postal Code Type: | Postal Code |
Itaporanga d'Ajuda is a Brazilian municipality in the Northeastern state of Sergipe. It covers 757km2, has a population of 34,709 (2020) and a population density of 46 residents per km2 (120/sq mi). It is home to the Tejupeba House and the Chapel of the Colégio Sugar Plantation, a plantation house and chapel cited as the first Jesuits settlement in Portuguese Brazil.
The municipality contains part of the Serra de Itabaiana National Park.
"Itaporanga" is a Tupi language term meaning "beautiful stone". It is formed by the word itá, meaning stone, and poranga, meaning beautiful. "D'Ajuda" is a reference to the patron of the municipality, Our Lady of Help (Nossa Senhora da Ajuda).