| Jamsam | |
| Other Name: | Yamsam |
| Settlement Type: | village |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Bihar, India |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Bihar |
| Subdivision Type2: | Region |
| Subdivision Name2: | Mithila |
| Subdivision Type3: | District |
| Subdivision Name3: | Madhubani |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Maithili, Hindi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 847234 |
| Area Code Type: | Telephone code |
| Area Code: | 06276 |
| Registration Plate: | BR- |
| Blank1 Name Sec1: | Coastline |
| Blank1 Info Sec1: | 0km (00miles) |
| Blank2 Name Sec1: | Nearest city |
| Blank2 Info Sec1: | Darbhanga |
| Blank4 Name Sec1: | Lok Sabha constituency |
| Blank4 Info Sec1: | Madhubani |
| Blank1 Name Sec2: | Climate |
| Blank1 Info Sec2: | Very Funny (Köppen) |
| Iso Code: | IN-BR |
Jamsam is a village in the Madhubani district of Bihar state, India.