Oscar Klefbom became Article in HockeysverigeRead the sourceArticle in HockeysverigeRead the sourceArticle in SVT SportRead the source before a shoulder injury ended his playing career. Oscar Klefbom grew up in Hammarö, Värmland, and Hammarö HC was his Article in SVTRead the sourceArticle in Sveriges RadioRead the source. In an April 2015 interview with Article in Sveriges RadioRead the source, he recalled fond memories of Hammarö Cup and credited the club with building his conditioning.
Article in OilersNationRead the source 2016, Klefbom told OilersNation that he cooked for Adam Larsson, who also confirmed his kitchen skills during the interview. Article in OilersNationRead the source he enjoyed cooking steaks; back in Sweden, he liked catching fish and preparing his own catch.
Music also featured in the 2016 interview: Klefbom named Avicii, Alesso and Article in OilersNationRead the source among his house music favourites. His recollection of his first concert, though, was of Article in OilersNationRead the source in Gothenburg.
On September 4, 2025, Klefbom was honoured by his Article in Färjestad BKRead the source in Hammarö alongside a preseason game between Färjestad and Örebro.