| Sembalur | |
| Native Name: | Sembalur Village |
| Settlement Type: | village |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Thanjavur |
| Subdivision Type3: | Taluk |
| Subdivision Name3: | Pattukkottai |
| Leader Title: | Panchayat President |
| Leader Name: | Mrs.Rajalakshmi Raman |
| Unit Pref: | Metric |
| Population Total: | 1251 |
| 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: | 614901 |
Sembalur is a village in the Pattukkottai taluk of Thanjavur district, Tamil Nadu, India. At the 2001 census, Sembalur had a total population of 1251 with 633 males and 618 females, and the literacy rate was 57.37%.