| Thenral Nagar | |
| Settlement Type: | Town panchayat |
| Pushpin Label Position: | left |
| 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: | Tiruvannamalai |
| Leader Title: | Chairman |
| Leader Name: | thangalatchumi paniyarasan (dmk) |
| Unit Pref: | Metric |
| Area Total Km2: | 16.3 |
| Elevation M: | 171 |
| Population Total: | 29000 |
| Population As Of: | 2012 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 606 605 |
| Area Code Type: | Telephone code |
| Area Code: | 91-4175 |
| Registration Plate: | TN 25 |
| Blank1 Name Sec1: | Lok Sabha constituency |
| Blank1 Info Sec1: | thiruvannamlai |
| Blank2 Name Sec1: | Vidhan Sabha constituency |
| Blank2 Info Sec1: | thiruvannamalai city |
| Blank1 Name Sec2: | Climate |
| Blank1 Info Sec2: | moderate (Köppen) |
| Blank2 Name Sec2: | Avg. summer temperature |
| Blank2 Info Sec2: | 41°C |
| Blank3 Name Sec2: | Avg. winter temperature |
| Blank3 Info Sec2: | 18°C |
Thenral Nagar is a township in Tiruvannamalai Taluk in Tiruvannamalai District in Tamil Nadu State. Melathikkan is 2.6 km far from its Taluk Main Town Tiruvannamalai. It is located 2.9 km distance from its District Main City Tiruvannamalai. It is located 158 km distance from its State Main City Chennai.
Near-by towns and panchayats with distance are Tiruvannamalai (2.9 km), Thenmathur (3.3 km), So.Kilnachipattu (3.4 km), Chinnakangiyanur (3.8 km) and Nallavanpalayam (4.3 km). Towns Near By Tiruvannamalai (2.6 km), Thandrampet (15.3 km), Thurinjapuram (19.9 km) and Keelpennathur (21.8 km).
Thenral nagar having population of over 29000 providing sub urban to Tiruvannamalai urbanity. it comes under Tiruvannamalai urban agglomerations on Polur road (chitoor- Cudllore road) NH 234A. there is one railway station for Thenral nagaras "Vengikkal-Thenral nagar" at katpadi railway route.