| Puchar Davisa | 02/03 16:50 | 168 | Karl Friberg v Gustavo Heide | CANC | |
| Puchar Davisa | 02/02 16:00 | 168 | [364] Karl Friberg v Thiago Monteiro [119] | 3-6,6-7 | |
| ITF - Manacor M15 | 01/27 10:00 | 28 | [365] Karl Friberg v Ryan Nijboer [469] | 4-6,2-6 | |
| ITF - Manacor M15 | 01/26 10:00 | 27 | Karl Friberg v Michiel de Krom | 7-6,6-3 | |
| ITF - Manacor M15 | 01/25 14:30 | 26 | Karl Friberg v Kristjan Tamm | 6-1,1-6,6-3 | |
| ITF - Manacor M15 | 01/24 09:30 | 25 | Karl Friberg v Hayato Matsuoka | 7-6,5-7,6-2 | |
| Challenger Oeiras - Kwalifikacje | 01/07 17:15 | 14 | [365] Karl Friberg v Samuel Vincent Ruggeri [348] | 3-6,2-6 | |
| Challenger Maia | 11/29 12:35 | 26 | [385] Karl Friberg v Andrea Vavassori [168] | 2-6,3-6 | |
| Challenger Maia | 11/28 12:15 | 25 | [324] Sebastian Fanselow v Karl Friberg [385] | 6-3,3-6,4-6 | |
| Challenger Maia | 11/27 11:00 | 19 | Karl Friberg v Aleksandr Braynin | 5-7,6-1,6-3 | |
| Challenger Maia | 11/26 13:10 | 14 | Karl Friberg v Tiago Pereira | 4-6,6-3,6-1 | |
| Challenger Danderyd | 11/15 17:30 | 25 | [228] Denis Yevseyev v Karl Friberg [440] | 6-2,6-3 |
Karl Friberg (born 25 March 1999) is a Swedish tennis player.
Friberg has a career high ATP singles ranking of No. 355 achieved on 19 June 2023. In the ATP doubles ranking he has a career high ranking of No. 690 achieved on 26 June 2023.
Friberg made his ATP main draw debut at the 2021 Stockholm Open after entering the doubles main draw as an alternate with Mohamed Safwat.
He received a wildcard for the 2023 Stockholm Open partnering Jonathan Mridha.