| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Wadia Nagar | city | State of Tamil Nadu | India | 13.1013889 | 80.2566667 | 42 | 2970775 |
| Walaja | city | State of Tamil Nadu | India | 12.9333333 | 79.3833333 | 524 | 92337 |
| Walajabad | city | State of Tamil Nadu | India | 12.7666667 | 79.7833333 | 213 | 131038 |
| Walajapet | city | State of Tamil Nadu | India | 12.9333333 | 79.3833333 | 524 | 92337 |
| Wallajahbad | city | State of Tamil Nadu | India | 12.7666667 | 79.7833333 | 213 | 131038 |
| Wandiwash | city | State of Tamil Nadu | India | 12.5 | 79.6166667 | 242 | 54999 |
| Wandiwāsh | city | State of Tamil Nadu | India | 12.5 | 79.6166667 | 242 | 54999 |
| Washermanpet | city | State of Tamil Nadu | India | 13.1130556 | 80.2886111 | 49 | 2970775 |
| Watrap | city | State of Tamil Nadu | India | 9.6333333 | 77.65 | 488 | 64366 |
| Wellington | city | State of Tamil Nadu | India | 11.3666667 | 76.8 | 6085 | 99120 |
| Wellington Town | city | State of Tamil Nadu | India | 11.3666667 | 76.8 | 6085 | 99120 |
| West Mambalam | city | State of Tamil Nadu | India | 13.0388889 | 80.2258333 | 59 | 3419566 |
| Wodapatti | city | State of Tamil Nadu | India | 12.1333333 | 77.7833333 | 961 | 22868 |
| Wālājābād | city | State of Tamil Nadu | India | 12.7666667 | 79.7833333 | 213 | 131038 |
| Wālājāpet | city | State of Tamil Nadu | India | 12.9333333 | 79.3833333 | 524 | 92337 |
| Wātrāp | city | State of Tamil Nadu | India | 9.6333333 | 77.65 | 488 | 64366 |
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