| Alichen | |
| Official Name: | Alichen Town |
| Settlement Type: | Urban Area |
| Flag Size: | 250 |
| Pushpin Map: | India Nagaland |
| Pushpin Map Caption: | 798607 Location in Nagaland, India |
| Coordinates: | 26.2697°N 94.455°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Nagaland |
| Subdivision Type2: | District |
| Subdivision Name2: | Mokokchung |
| Government Type: | Chairman–council government. |
| Governing Body: | Alichen Council |
| Unit Pref: | Metric |
| Area Total Km2: | 4.53 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | English, Chungli Ao,Mongsen Ao |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Registration Plate: | NL |
Alichen is a town in Mokokchung district of Nagaland state in India. It is situated at the country side South of Mokokchung Town. It is the headquarters of the 2nd Battalion of the Nagaland Armed Police. 2001 census figures put the town's population at 4403 with 880 households. The number of children below the age of five is 572. Alichen Town is part of the Urban Station agglomeration.