| Alathiyur | |
| Native Name Lang: | ta |
| Settlement Type: | village |
| Pushpin Map: | India Tamil Nadu#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 11.3667°N 79.2625°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Ariyalur |
| Named For: | RAMCO CEMENTS LTD |
| Unit Pref: | Metric |
| Population Total: | 4012 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 621730 |
| Registration Plate: | TN- |
| Blank1 Name Sec1: | Coastline |
| Blank1 Info Sec1: | 0km (00miles) |
| Blank2 Name Sec1: | Sex ratio |
| Blank2 Info Sec1: | 824 ♂/♀ |
| Blank3 Name Sec1: | Literacy |
| Blank3 Info Sec1: | 57.21% |
Alathiyur is a village in the Sendurai taluk of Ariyalur district, Tamil Nadu, India.
census, Alathiyur had a total population of 4,012 with 2,199 males and 1,813 females.[1]