Siiddašjávri

infobox_lake
lake_name = Siiddašjávri
basin_countries= Norway
location = Ballangen, Nordland, Norway; Sweden
inflow =
outflow =
area = 71.91 km² (0,96 km² in Norway)
elevation = 604 m
residence_time =
shore = 97.27 km
depth =
max-depth =
volume =
coords = coord|68|06|02|N|17|13|32|E|region:NO_type:waterbody_scale:200000|display=inline,title
cities =
islands =
reference = NVE

Siiddašjávri is a lake on the border between Norway and Sweden. The Norwegian side lies in Ballangen municipality in Nordland. The ending "-jávri" is the Northern Sami word for lake.

ee also

* List of lakes in Norway
* Geography of Norway