|Covid-19|Monarch – Gustav I
- Instruction that the people in the Swedish province if Finland is to be trained in defense against the Russians.
- A Description of the Northern Peoples by Olaus Magnus
11 March - The Russo-Swedish War (1554–57): the Russian Empire breaks its 1537 treaty with Sweden by attacking Sweden, which results in the Russian defeat at the Battle of Kivinebb.
30 may - Introduction of the Internal passport.
- Axel Kurck, colonel (died 1630)
- Petrus Kenicius, Archbishop of Uppsala (died 1636)
1555 in Sweden Wikipedia
Events from the year 1555 in Sweden