| Lakhnaur | |
| Settlement Type: | Village |
| Pushpin Map: | India Bihar#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Bihar, India |
| Coordinates: | 26.19°N 86.29°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Type2: | District |
| Subdivision Name1: | Bihar |
| Demographics Type1: | Languages |
| Demographics1 Title2: | Spoken |
| Demographics1 Info2: | Maithili |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 847403 |
Lakhnaur is a village located near Jhanjharpur (a subdivision in the Madhubani district). It is located 15 km from the Koshi River, in the state of Bihar, India. The local language is Maithili.
The land is fertile, supporting the growth of mango, orchids, rice, wheats, and makhana. There are also fish ponds. Nearby is the Badka Mahadev Lord Shiva temple, known for its mythological stories.
Lakhnaur has its own website, which is moderated by some villagers. In this block a popular village umari where 5 pound available and a great exporter of fish and Laufa haat is very famous where people purchase cow and buffalo.