| Árneshreppur | |
| Settlement Type: | Municipality |
| Mapsize: | 250px |
| Pushpin Map: | Iceland |
| Coordinates: | 65.98°N -21.453°W |
| Subdivision Type: | Country |
| Subdivision Name: | Iceland |
| Subdivision Type1: | Region |
| Subdivision Name1: | Westfjords |
| Subdivision Type2: | Constituency |
| Subdivision Name2: | Northwest Constituency |
| Unit Pref: | Metric |
| Area Total Km2: | 707 |
| Population Total: | 53[1] |
| Population Density Km2: | 0.07 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | 524 |
| Code1 Name: | Municipal number |
| Code1 Info: | 4901 |
Árneshreppur (pronounced as /is/) is an Icelandic municipality, located in the Westfjords peninsula of northwestern Iceland.[2] It is Iceland's lowest-populated municipality with a population of 53 based on the 2024 estimate.
The village Djúpavík at the Reykjarfjörður in Icelandic pronounced as /ˈreiːcarˌfjœrðʏr̥/ is situated in the municipality. Other villages are Gjögur in Icelandic pronounced as /ˈcœːɣʏr̥/, Norðurfjörður in Icelandic pronounced as /ˈnɔrðʏrˌfjœrðʏr̥/ and Krossnes in Icelandic pronounced as /ˈkʰrɔsːˌnɛːs/. The area is served by Gjögur Airport.
Árneshreppur is renowned for its stunning natural beauty with diverse hiking paths, the exhibitions in Djúpavík and the museum Kört in Trékyllisvík. One of the main tourist attractions is Krossneslaug, a unique swimming pool by the seaside.