Ljungberg was born on 16 April 1977 in Vittsjö, Sweden to parents Roy Alve Erling Ljungberg, a civil engineer and owner of a construction and consultant business, and Elisabeth Bodil Ljungberg, a Swedish Labor Department worker. On 12 September 1984, the Ljungbergs had another son, Karl Oskar Filip. in 1982, the Ljungberg family left Vittsjö and moved to Halmstad. At first, the tenacious 5 year old would not have any part of moving. His parents relented and took him to Halmstads BK where he played on the youth team under Olle Eriksson. At 18, Ljungberg decided to attend university to study information technology and economics but struggled to balance the hectic academic timetable with the physically demanding commitments of professional football.
