Lars Nils Berghagen (born May 15 1945 in Enskede , Sweden) is a Swedish singer, songwriter, composer and actor.

He released his first record 1965, only 19 years old. Four years later, 1969, he released the single Teddybjörnen Fredriksson , which has become a classic.

He hosted the TV show Allsång på Skansen (Singalong at Skansen) from 1994 to 2003. During his time as host the show increased its ratings from 600 000 to 2 000 000 viewers, which is very impressive by Swedish standards.

He has been married to Barbro Svensson (1965-1968) and is the father of Malin Berghagen .