The following is a list of cathedrals in Sweden.
A cathedral church is a Christian place of worship which is the chief, or 'mother' church of a diocese and is distinguished as such by being the location for the cathedra or bishop's seat. In the strictest sense, only those Christian denominations with an episcopal hierarchy possess cathedrals. However the label 'cathedral' remains in common parlance for notable churches which were formerly part of an episcopal denomination.
Syriac Orthodox Church
In Sweden there are two separate Syriac Orthodox Dioceses, each with its own bishop, both based in Södertälje.
References
List of cathedrals in Sweden Wikipedia(Text) CC BY-SA