| La Unión District | |
| Native Name Lang: | es |
| Settlement Type: | District |
| Mapsize: | frameless |
| Subdivision Type: | Country |
| Subdivision Name: |  Peru |
| Subdivision Type1: | Region |
| Subdivision Name1: | Huánuco |
| Subdivision Type2: | Province |
| Subdivision Name2: | Dos de Mayo |
| Parts Type: | Subdivisions |
| Parts Style: | para |
| Established Title: | Founded |
| Established Date: | January 2, 1857 |
| Seat Type: | Capital |
| Seat: | La Unión |
| Leader Title: | Mayor |
| Leader Name: | Luis Maldonado Rivera |
| Unit Pref: | Metric |
| Area Total Km2: | 167.1 |
| Elevation M: | 3204 |
| Population Total: | 6634 |
| Population As Of: | 2017 |
| Population Density Km2: | auto |
| Timezone1: | PET |
| Utc Offset1: | -5 |
| Blank Name Sec1: | UBIGEO |
| Blank Info Sec1: | 100301 |
La Unión District is one of nine districts found in the province Dos de Mayo in Peru.[1]