| Oddanchatram | |
| Native Name Lang: | ta |
| Nickname: | Gardenia city |
| Settlement Type: | Town |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 10.48°N 77.75°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | Region |
| Subdivision Name2: | Kongu Nadu |
| Subdivision Type3: | District |
| Subdivision Name3: | Dindigul |
| Government Type: | Municipality |
| Governing Body: | Oddanchatram Municipal Council |
| Leader Title1: | Chairman |
| Leader Name1: | Thirumalaisamy |
| Unit Pref: | Metric |
| Population Total: | 30,064 |
| Population As Of: | 2011 |
| 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: | 624619 |
| Area Code Type: | Telephone code |
| Area Code: | 04553 |
| Registration Plate: | TN 94Z (before TN57) |
Oddanchatram (in Tamil oʈʈansattiɾam/) is a town in the Dindigul district of Tamil Nadu.
According to 2011 census, Oddanchatram had a population of 30,064 with a gender-ratio of 994 females for every 1,000 males, much above the national average of 929.[1] A total of 2,676 were under the age of six, constituting 1,378 males and 1,298 females. Scheduled Castes and Scheduled Tribes accounted for 20.3% and 0.06% of the population respectively. The average literacy of the town was 77.11%, compared to the national average of 72.99%. The town had a total of 8,046 households. There were a total of 12,738 workers, comprising 1,127 cultivators, 1,983 main agricultural labourers, 164 in house hold industries, 9,048 other workers, 416 marginal workers, 9 marginal cultivators, 134 marginal agricultural labourers, 16 marginal workers in household industries and 257 other marginal workers. The population of this town increased by 24% from 24,000 in 2001 to 30000 in 2011.[2]
As per 2016, totally 2,23,628 (1,10,979 Males, 1,12,643 Females & 6 Others) voters are in Oddanchatram Constituency.
Oddanchatram (state assembly constituency) is part of Dindigul (Lok Sabha constituency).[3] Oddanchatram elects one MLA to the legislative assembly of the State. R. Sakkarapani from Dravida Munnetra Kazhagam party was elected as the MLA from 1996 to 2021 for consecutive 6 terms, from this state assembly constituency.[4]