Sviðnur
{{unreferenced|date=April 2017}}
{{Infobox islands
| name = Sviðnur
| native_name = Sviðnur
| native_name_link =
| native_name_lang = is
| sobriquet =
| image_name =
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| map = Iceland
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| coordinates = {{coord|65.4115|-22.6111|display=it}}
| etymology =
| location = Atlantic Ocean
| GridReference =
| archipelago =
| waterbody = Atlantic ocean
| total_islands =
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| country = Iceland
| country_admin_divisions_title = Constituency
| country_admin_divisions = Norðvesturkjördæmi
| country_admin_divisions_title_1 = Region
|country_admin_divisions_1 = Vestfirðir
|country_admin_divisions_title_2 = Municipality
|country_admin_divisions_2 =
|country_capital_type =
|country_capital = Reykjavík
|country_largest_city_type =
|country_largest_city = Reykjavík
|country_capital_and_largest_city = Reykjavík
|country_largest_city_population = 123 246
|country_leader_title = President
|country_leader_name = Guðni Th. Jóhannesson
|country_area_km2 = 102775
| country_1 =
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| population = 0
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| density_km2 = 0
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|languages = Icelandic
| ethnic_groups =
|timezone1 = WET
|utc_offset1 = +0
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}}
Sviðnur ({{IPA|is|ˈsvɪðnʏr̥|audio=Sviðnur pronunciation.ogg}}) is an uninhabited island in the Skáleyjar region of Westfjords, Iceland.
{{Islands of Iceland}}
{{Iceland-geo-stub}}