Karl Gustav Vilhelm Berggren (born 7 September 1997) is a Swedish professional footballer who plays as a midfielder for Ekstraklasa club Raków Częstochowa.
On 7 July 2019, Berggren scored his first goal as a professional in a 1–2 league loss to IFK Norrköping.
[citation needed] On 29 July 2022, Berggren signed a three-year contract with Polish side Raków Częstochowa.
[citation needed] Berggren scored his first goal for Raków on 27 May 2023 in a 1–1 league draw against Zagłębie Lubin.
[citation needed] Berggren made his debut for the Sweden national team on 9 January 2020 in a friendly game against Moldova.