| Official Name: | Alachiq Tapahsi |
| Native Name: | الاچيق تپه سي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ardabil |
| Subdivision Type2: | County |
| Subdivision Name2: | Meshgin Shahr |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Moradlu |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Arshaq-e Gharbi |
| Population As Of: | 2006 |
| Population Total: | 107 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Coordinates: | 38.6703°N 47.7011°W |
Alachiq Tapahsi (Persian: الاچيق تپه سي, also Romanized as Alāchīq Tapahsī) is a village in Arshaq-e Gharbi Rural District, Moradlu District, Meshgin Shahr County, Ardabil Province, Iran. At the 2006 census, its population was 107, in 16 families.