Fredrik Ljungberg
football player infobox
| playername = Fredrik Ljungberg
| image =
| fullname = Karl Fredrik Ljungberg
| nickname = Freddie, Ljungan
| height = 5'9" / 1.75m
| dateofbirth = 16 April, 1977
| cityofbirth = Vittsjö
| countryofbirth = Sweden
| currentclub = Arsenal F.C.
| clubnumber = 8
| position = Winger, Attacking midfielder
| youthyears = 1982-1994
| youthclubs = Halmstads BK
| years = 1994-98
1998 - present
| clubs = Halmstads BK
Arsenal
| caps(goals) = 69 (10)
198 (46)
| nationalyears = 1998-
| nationalteam = Sweden
| nationalcaps(goals) = 61 (13)
| pcupdate = 13 July, 2006
| ntupdate = 24 June, 2006}}
Karl Fredrik Ljungberg (IPA: [ˈfreːdrɪk ˈjʊŋbærj]) (lahir 16 April, 1977 di Vittsjö, Hässleholm) adalah gelandang sayap tim nasional sepak bola Swedia yang bertinggi badan 175 cm dan bermain di klub Arsenal di English Premiership.