| Chak Mansur | |
| Settlement Type: | village |
| Pushpin Map: | India Bihar#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Bihar, India |
| Coordinates: | 25.612°N 85.934°W |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Bihar |
| Subdivision Type2: | District |
| Subdivision Name2: | Begusarai |
| Subdivision Type3: | Block |
| Subdivision Name3: | Mansurchak |
| Unit Pref: | Metric |
| Area Code Type: | Telephone code |
| Area Code: | 06278 |
| Postal Code Type: | PIN |
| Postal Code: | 851128 |
| Registration Plate: | BR-09 |
| Elevation M: | 49 |
| Population As Of: | 2011 |
| Population Total: | 112 |
| Population Density Km2: | auto |
| Blank1 Name Sec2: | Language |
| Blank1 Info Sec2: | Hindi, Maithili, Urdu |
| Blank2 Name Sec2: | Additional language |
| Blank2 Info Sec2: | English |
| Timezone1: | IST |
| Utc Offset1: | +05:30 |
| Blank1 Name Sec1: | Sex ratio |
| Blank1 Info Sec1: | 935♂♂ |
Chak Mansur is one of 38 villages in the rural Mansurchak Block of the Begusarai district of the state of Bihar in India.