| Copa Davis | 02/03 16:50 | 168 | Karl Friberg v Gustavo Heide | CANC | |
| Copa Davis | 02/02 16:00 | 168 | [364] Karl Friberg v Thiago Monteiro [119] | 3-6,6-7 | |
| ITF M15 Manacor | 01/27 10:00 | 28 | [365] Karl Friberg v Ryan Nijboer [469] | 4-6,2-6 | |
| ITF M15 Manacor | 01/26 10:00 | 27 | Karl Friberg v Michiel de Krom | 7-6,6-3 | |
| ITF M15 Manacor | 01/25 14:30 | 26 | Karl Friberg v Kristjan Tamm | 6-1,1-6,6-3 | |
| ITF M15 Manacor | 01/24 09:30 | 25 | Karl Friberg v Hayato Matsuoka | 7-6,5-7,6-2 | |
| Challenger Oeiras Qual | 01/07 17:15 | 14 | [365] Karl Friberg v Samuel Vincent Ruggeri [348] | 3-6,2-6 | |
| Challenger de Maia | 11/29 12:35 | 26 | [385] Karl Friberg v Andrea Vavassori [168] | 2-6,3-6 | |
| Challenger de Maia | 11/28 12:15 | 25 | [324] Sebastian Fanselow v Karl Friberg [385] | 6-3,3-6,4-6 | |
| Challenger de Maia | 11/27 11:00 | 19 | Karl Friberg v Aleksandr Braynin | 5-7,6-1,6-3 | |
| Challenger de Maia | 11/26 13:10 | 14 | Karl Friberg v Tiago Pereira | 4-6,6-3,6-1 | |
| Challenger de 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.