| Punnai Nagar | |
| Native Name: | Punna Kathu Vilai |
| Settlement Type: | Town |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Kanyakumari |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 629004 |
| Registration Plate: | TN 74 |
Punnai Nagar is a small residential and beautiful area in Nagercoil, Tamil Nadu, India.Konam Polytechnic and Govt Engineering colleges are situated next to Punnai Nagar.Many of the government quarters are situated around Punnai Nager and the Konam area.
Punnai Nagar is within the Kottar Vicariate of the Kottar Diocese, served by the Church of Our Lady of Lourdes.[1]