| Markayankottai | |
| Settlement Type: | city |
| Pushpin Map: | India Tamil Nadu#India3 |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 9.8581°N 77.3672°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Theni |
| Unit Pref: | Metric |
| Population Total: | 6509 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
Markayankottai is a panchayat town in Theni district in the Indian state of Tamil Nadu.
India census,[1] Markayankottai had a population of 6509. Males constitute 50% of the population and females 50%. Markayankottai has an average literacy rate of 76%, higher than the national average of 79.5%: male literacy is 86%, and female literacy is 75%.