| Alagapuri | |
| Settlement Type: | village |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 9.631°N 77.767°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Virudhunagar |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
Alagpuri is a village in the Watrap Block in the Virudhunagar District of the Indian state of Tamil Nadu. It is traditionally recognised as one of the 72 palayams of Madurai that were in existence in the days of Nagama Nayaka and his son Visvanatha Nayaka.
Following independence, Alagapuri moved under the administration of the Virudhunagar District. It is situated on National Highway 208 between T.Kallupatti and Rajapalayam.