| Bagalur | |
| Pushpin Map: | Tamil Nadu |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | Region |
| Subdivision Name2: | Kongu Nadu |
| Subdivision Type3: | District |
| Subdivision Name3: | Krishnagiri |
| Leader Title: | Panchayat President |
| Unit Pref: | Metric |
| Population Total: | 7,519 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Language Official |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 635103 |
| Registration Plate: | TN-70 |
| Demographics1 Info1: | Tamil, Kannada Telugu. |
| Coordinates: | 12.8303°N 77.8661°W |
Bagalur is a town in the Hosur taluk of Krishnagiri district, Tamil Nadu state, India. The nearest city is Hosur, which is located 10 km away. This village is 5 km from the state of Karnataka.
Bagalur is rich in educational institutions which includes 4 Government Schools and 7 Private educational institutions.