| Pacllón | |
| Native Name Lang: | es |
| Settlement Type: | District |
| Mapsize: | frameless |
| Subdivision Type: | Country |
| Subdivision Name: |  Peru |
| Subdivision Type1: | Region |
| Subdivision Name1: | Ancash |
| Subdivision Type2: | Province |
| Subdivision Name2: | Bolognesi |
| Parts Type: | Subdivisions |
| Parts Style: | para |
| Established Title: | Founded |
| Established Date: | January 2, 1857 |
| Seat Type: | Capital |
| Seat: | Pacllón |
| Leader Title: | Mayor |
| Leader Name: | Adhemir Carrera Padilla |
| Unit Pref: | Metric |
| Area Total Km2: | 211.98 |
| Elevation M: | 3292 |
| Population Total: | 1349 |
| Population As Of: | 2005 census |
| Population Density Km2: | auto |
| Timezone1: | PET |
| Utc Offset1: | -5 |
| Blank Name Sec1: | UBIGEO |
| Blank Info Sec1: | 020513 |
Pacllón is a district of the province of Bolognesi, in the Ancash Region of Peru.
The town is within a day's walk from Chiquián. Many of the arrierros (donkey owners) that work in Waywash live here. Donkeys can be obtained here. The town is also home to stores with a regular selection of meals.
The hike from either the lake Hawaqucha or the Jashapampa valley takes all day and offers some of the best views of the Waywash mountain range. There are places to camp on both sides of the town.
The Waywash range is the natural eastern and southeastern border of the district. The highest peak of the district is Yerupajá which is also the highest elevation of the range at6635m (21,768feet). Other mountains of the district are listed below: