| Helgafellssveit | |
| Settlement Type: | Former municipality |
| Pushpin Map: | Iceland |
| Subdivision Type: | Country |
| Subdivision Name: | Iceland |
| Subdivision Type1: | Region |
| Subdivision Name1: | Western Region |
| Subdivision Type2: | Constituency |
| Subdivision Name2: | Northwest Constituency |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Stykkishólmur |
| Unit Pref: | Metric |
| Area Total Km2: | 58 |
| Population Total: | 64 |
| Population Density Km2: | 0.91 |
| Code1 Name: | Municipal number |
| Code1 Info: | 3710 |
Helgafellssveit (pronounced as /is/) was a municipality in Iceland. In March 2022, residents of Helgafellssveit and the neighboring municipality of Stykkishólmur voted to merge the two municipalities into one.[1]