Johannes àrsjö (born 21 June 1985) is a Swedish professional strongman competitor notable for coming in 2nd in the 2014 and 2016 Europe's Strongest Man, and winning Sweden's Strongest Man nine times.
Having competed in 39 International strongman competitions and winning 5 of them, àrsjö is among the 50 most decorated strongmen of all time.
Born in Västervik, Sweden, àrsjö came to international prominence after winning Sweden's Strongest Man in 2009 A series of top 10 finishes in international grands prix within both the Giants Live and Strongman Super Series circuits led to an invite to the 2008 and 2009 World's Strongest Man contests, but he failed to qualify for the finals on both occasions. àrsjö was once again invited to the 2010 World's Strongest Man, but he was injured shortly before the qualifying heats began.
àrsjö held the Swedish national deadlift record with a lift of performed at 2014 World Deadlift Championships for 11 years until 2024.
àrsjö's niece, Ebba àrsjö, is a para-alpine skier.