Tromsøysundet

{{Short description|Strait in Troms, Norway}}

{{Infobox body of water

|name = {{native name|no|Tromsøysundet}}
{{native name|se|Romssanuorri}}

|native_name =

|other_name =

|image = Tromsø view.jpg

|alt =

|caption = View of the strait with the city of Tromsø in the background

|location = Troms county, Norway

|image_map = {{Infobox mapframe|wikidata=yes|zoom=9|marker=natural}}

|caption_map = Interactive map of the strait

|basin_countries = Norway

|coords = {{coord|69.6617|18.9914|region:NO_type:waterbody |display=inline, title}}

|type = Strait

|inflow =

|outflow =

|catchment =

|length = {{convert|11|km}}

|width = {{convert|0.6-3|km|1}}

|area =

|depth =

|max-depth =

|volume =

|shore =

|frozen =

|islands = Tromsøya

|cities = Tromsø

|reference =

}}

{{native name|no|Tromsøysundet}} or {{native name|se|Romssanuorri}}{{cite web|url=https://stadnamn.kartverket.no/fakta/79399|title=Informasjon om stadnamn|website=Norgeskart|publisher=Kartverket|language=no|accessdate=2024-07-09}} is a strait located in Tromsø Municipality in Troms county, Norway. The {{convert|11|km|adj=on}} long strait separates the island of Tromsøya (the location of the city of Tromsø) from the mainland east of the island. The strait is crossed by the Tromsøysund Tunnel (E8 highway) and by the Tromsø Bridge. The strait ranges from about {{convert|0.6-3|km|1}} wide. The strait connects to the Balsfjorden and Straumsfjorden to the south and into the Kvalsundet and Grøtsundet straits to the north.{{cite web|url=http://www.snl.no/Troms%C3%B8ysundet|title=Tromsøysundet|author=Store norske leksikon|authorlink=Store norske leksikon|language=Norwegian|accessdate=2010-04-13}}