Lukáš Klein

Lukáš Klein
Country (sports) Slovakia
ResidenceSpišská Nová Ves, Slovakia
Born (1998-03-22) 22 March 1998
Spišská Nová Ves, Slovakia
Height1.93 m (6 ft 4 in)
PlaysRight-handed
CoachKarol Kučera
Prize money$ 1,039,371
Singles
Career record11–21
Career titles0
Highest rankingNo. 109 (5 August 2024)
Current rankingNo. 180 (16 June 2025)
Grand Slam singles results
Australian Open2R (2024)
French OpenQ3 (2025)
Wimbledon1R (2022)
US OpenQ3 (2023)
Other tournaments
Olympic Games1R (2021)
Doubles
Career record5-7
Career titles0
Highest rankingNo. 240 (5 April 2021)
Current rankingNo. 428 (16 June 2025)
Other doubles tournaments
Olympic Games2R (2021)
Last updated on: 16 June 2025.

Lukáš Klein (born 22 March 1998) is a Slovak professional tennis player. Klein has a career-high ATP singles ranking of world No. 109, achieved on 5 August 2024. He also has a career-high doubles ranking of No. 240, achieved on 5 April 2021. He is currently the No. 1 Slovak tennis player in singles.

Klein has reached 15 career singles finals, with a record of 9 wins and 6 losses, including 3 ATP Challenger titles. Additionally, he has reached 11 career doubles finals, with a record of 5 wins and 6 losses, including a 1–3 result in Challenger finals.