| Län | |
| Also Known As: | Len |
| Region: | Western Province (Papua New Guinea) |
| Ref: | e23 |
| Familycolor: | Papuan |
| Fam1: | Yam |
| Fam2: | Nambu |
| Iso3: | none |
| Glotto: | lenn1234 |
| Glottorefname: | Len |
Län (Len, or Dapo, Dungerwab, Parb, Tuj) is a Yam language spoken in Western Province, Papua New Guinea.