Raven Klaasen
Raven Klaasen is a South African professional tennis player who specialises in doubles.
He achieved his career-high doubles ranking of world No. 7 in August 2019, and has won 19 doubles titles on the ATP Tour, including two at Masters 1000 level. Klaasen is a two-time Grand Slam finalist, having finished runner-up at the 2014 [Australian Open – Men's doubles|2014 Australian Open] alongside Eric Butorac, and the 2018 [Wimbledon Championships – Men's doubles|2018 Wimbledon Championships] with Michael Venus. He was also runner up at the ATP Finals in both 2016 [ATP World Tour Finals – Doubles|2016] and 2019, partnering Rajeev Ram and Venus respectively.
In singles, Klaasen has a career-high ranking of world No. 208, achieved in October 2011.
He has represented South Africa in the Davis Cup since 2009, and has a win–loss record of 13–4.
He reached his 300th match win at the 2022 Estoril Open with Ben McLachlan defeating Hugo Nys/Jan Zieliński in the round of 16.
Significant finals
Grand Slam finals
Doubles: 2 (2 runners-up)
Year-end championships
Doubles: 2 (2 runners-up)
Masters 1000 finals
Doubles: 5 (2 titles, 3 runners-up)
ATP career finals
Doubles: 42 (19 titles, 23 runner-ups)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | 2013 [Open Sud de France – Doubles|] | Open Sud de France, France | 250 Series | Hard |  Doubles performance timeline''Current through the 2023 [French Open – Men's doubles|2023 French Open].'' |