| Nalumavadi | |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 8.9562°N 78.971°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Type2: | District |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Name2: | Tuticorin |
| Named For: | Mango trees |
| Governing Body: | Panchayat |
| Unit Pref: | Metric |
| Population Total: | 5088 |
| Population As Of: | 2010 |
| Population Density Km2: | auto |
| Population Rank: | 23 |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 628211 |
| Registration Plate: | TN-69 |
| Blank1 Name Sec1: | Nearest city |
| Blank1 Info Sec1: | Thiruchendur |
| Type: | Village |
| Demographics1 Info1: | Tamil |
Nalumavadi is a settlement on the southern edge of the Indian peninsula in Thoothukudi District. It has a population of approximately 5,486 spanning around 1378 households. There is an abundance of mango groves in the village amongst four large Mangifera indica trees. It has been named Nalumavadi in Tamil, which means "under the shadow of four mango trees".
There are places of worship for Hindus and Muslims. A Church of South India congregation was established in 1841 by Reverend John Thomas and St John's church was built in 1842, extended in 1850 and rebuilt in 1926. The pastorate is part of the Thoothukudi - Nazareth diocese.