| Mahmudpur Union | |
| Native Name: | মাহমুদপুর ইউনিয়ন, আড়াইহাজার |
| Native Name Lang: | bn |
| Pushpin Map: | Bangladesh |
| Coordinates: | 23.777°N 90.691°W |
| Subdivision Type: | Country |
| Subdivision Name: | Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Name1: | Dhaka Division |
| Subdivision Type2: | District |
| Subdivision Name2: | Narayanganj district |
| Subdivision Type3: | Upazila |
| Subdivision Name3: | Araihazar Upazila |
| Government Type: | Union Council |
| Leader Title: | Chairman |
| Population Density Km2: | auto |
| Timezone: | BST |
| Utc Offset: | +6 |
Mahmudpur Union (Bengali: মাহমুদপুর ইউনিয়ন, আড়াইহাজার) is a union parishad of Araihazar Upazila in Narayanganj District of the Division of Dhaka, Bangladesh.[1] It has a population of 13,766 men and 13,735 women. The union has a literacy rate of 29.9 per cent.