| Lagma | |
| Settlement Type: | Village |
| Pushpin Map: | India Bihar#India |
| Pushpin Map Caption: | Location in Bihar, India |
| Coordinates: | 25.75°N 86.67°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Bihar |
| Subdivision Type2: | Region |
| Subdivision Name2: | Mithila |
| Subdivision Type3: | District |
| Subdivision Name3: | Saharsa District |
| Founder: | Rajnish shekhar Jha. |
| Government Type: | Panchayat |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Maithili, Hindi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Iso Code: | IN-BR |
Lagma is a village in the northern Indian state of Bihar
Lagma is located on the bank of the Kosi River. It is surrounded by the river on three sides. Highway NH-107 passes through the village. It is about 25 kilometers from Saharsa district and 7 Kilometers from Sonbarsa Block. There are three schools in this village, one primary school, one middle school and One high school near NH-107.