| Kalayarkoil | |
| Settlement Type: | taluk |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Kalayarkoil, Tamil Nadu |
| Coordinates: | 9.8457°N 78.6314°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Sivaganga |
| Subdivision Type3: | Region |
| Subdivision Name3: | Pandya Nadu |
| Subdivision Type4: | Division |
| Subdivision Name4: | Madurai |
| Government Type: | block |
| Governing Body: | kalayarkoil panchayat |
| Area Total Km2: | 43.28 |
| Elevation M: | 94 |
| Population Total: | 40,403 |
| Population As Of: | 2011 |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 630551 |
| Area Code Type: | Telephone code |
| Area Code: | 04575 |
| Registration Plate: | TN-63 |
| Blank1 Info Sec1: | 63km (39miles) WEST (Road) |
| Blank1 Name Sec1: | Distance from Madurai |
| Blank2 Info Sec1: | 120km (80miles) NORTH (Rail) |
| Blank2 Name Sec1: | Distance from Trichirapalli |
| Blank3 Info Sec1: | 134km (83miles) SOUTH (Rail) |
| Blank3 Name Sec1: | Distance from Rameswaram |
| Official Name: | Kalayarkoil |
Kalaiyarkoil is a town in the Sivaganga district of Tamil Nadu, India. It has a total of 43 panchayat villages.