Rostojávri

{{Short description|Lake on the border of Sweden and Norway}}

{{Infobox body of water

|name = {{native name list|tag1=sv|name1=Råstojaure|tag2=se|name2=Rostojávri|tag3=no|name3=Storrostavatnet}}

|native_name =

|native_name_lang =

|other_name =

|image = Råstojaure - KMB - 16000300022539.jpg

|alt = View of the lake with an island in the foreground and mountain range in the background

|caption =

|image_bathymetry =

|alt_bathymetry =

|caption_bathymetry =

|image_map = {{Infobox mapframe|wikidata=yes|zoom=8|marker=natural}}

|caption_map = Interactive map of the lake

|coordinates = {{coord|68.8213|20.2794|region:NO_type:waterbody|display=inline,title}}

|location = Norrbotten, Sweden
and Troms, Norway

|type =

|inflow =

|outflow =

|catchment =

|basin_countries = Sweden and Norway

|date-built =

|date-flooded =

|length = {{convert|16|km}}

|width = {{convert|4|km}}

|area = {{convert|34.24|km2|abbr=on}}

|depth =

|max-depth =

|volume =

|residence_time =

|shore =

|elevation = {{convert|680|m}}

|frozen =

|islands =

|cities =

|reference = NVE

}}

{{native name|se|Rostojávri}}, {{native name|sv|Råstojaure}}, or {{native name|no|Storrostavatnet}}{{cite web|url=https://stadnamn.kartverket.no/fakta/745119|title=Informasjon om stadnamn|website=Norgeskart|publisher=Kartverket|language=no|accessdate=2024-07-16}} is a lake on the border between Norway and Sweden. The Norwegian part of the lake (smaller) is located in Målselv Municipality in Troms county and the Swedish part of the lake (larger) is located in Kiruna Municipality in Norrbotten County. The Norwegian part of the lake lies inside Øvre Dividal National Park. The lake lies at an elevation of {{convert|680|m}} and covers a total area of {{convert|34.24|km2}}; with {{convert|3.67|km2}} located in Norway and the remaining {{convert|30.57|km2}} are located in Sweden.