| Achampatti | |
| — village — | |
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| Coordinates | |
| Country | India |
| State | Tamil Nadu |
| District(s) | Thanjavur |
| Panchayat President | |
| Population | 1,545 (2001[update]) |
| Time zone | IST (UTC+05:30) |
Achampatti is a village in the Thanjavur taluk of Thanjavur district, Tamil Nadu, India.
As per the 2001 census, Achampatti had a total population of 1545 with 777 males and 768 females. The sex ratio was 988. The literacy rate was 49.85.