| Official Name: | Tálknafjörður |
| Native Name: | Tálknafjarðarhreppur |
| Nickname: | Tálknó, Fjörðurinn, heimalandið |
| Settlement Type: | Village and Municipality |
| Pushpin Map: | Iceland |
| Subdivision Type: | Country |
| Subdivision Name: |  Iceland |
| Subdivision Type1: | Constituency |
| Subdivision Name1: | Northwest Constituency |
| Subdivision Type2: | Region |
| Subdivision Name2: | Westfjords |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Tálknafjörður |
| Leader Title: | Mayor (Sveitarstjóri) |
| Leader Name: | Ólafur Þór Ólafsson |
| Population As Of: | January 2024 |
| Population Total: | 261 |
| Population Urban: | 5 |
| Population Metro: | 256 |
| Coordinates: | 65.65°N -81°W |
| Postal Code Type: | Póstnúmer |
| Postal Code: | 460 |
| Timezone: | GMT |
| Utc Offset: | +0 |
Tálknafjörður (pronounced as /is/) is a fjord located in southern Westfjords between Patreksfjörður and Bildudalur in Iceland.
The term is also used for the immediate village and municipality. In January 2024, the municipality had 261 inhabitants, of whom 256 lived within the town proper.
On the land side the municipality is surrounded by the municipality of Vesturbyggð. There is considerable cooperation between the two municipalities. In October 2023 inhabitants voted for the merger of the municipalities and that will happen in May 2024. The town of Tálknafjörður was formerly named Sveinseyri in Icelandic pronounced as /ˈsveinsˌeiːrɪ/ or Tunga in Icelandic pronounced as /ˈtʰuŋka, ˈtʰʏŋka/. By road, the distance to Ísafjörður, the largest city in the West Fjords, is 137 km, and 403 km to Reykjavík. This distance can be significantly shortened by the ferry from Brjánslækur in Icelandic pronounced as /ˈprjaunsˌlaiːkʏr̥/ to Stykkishólmur.