Jakob Hlasek
| Country (sports) | Switzerland | 
|---|---|
| Residence | Montreux, Switzerland | 
| Born | 12 November 1964 Prague, Czechoslovakia | 
| Height | 1.87 m (6 ft 1+1⁄2 in) | 
| Turned pro | 1983 | 
| Retired | 1996 | 
| Plays | Right-handed (one-handed backhand) | 
| Prize money | US$ 5,895,293 | 
| Singles | |
| Career record | 432–329 | 
| Career titles | 5 | 
| Highest ranking | No. 7 (17 April 1989) | 
| Grand Slam singles results | |
| Australian Open | 3R (1984, 1985) | 
| French Open | QF (1991) | 
| Wimbledon | 4R (1987, 1996) | 
| US Open | 4R (1988, 1996) | 
| Other tournaments | |
| Tour Finals | SF (1988) | 
| Grand Slam Cup | QF (1991, 1996) | 
| WCT Finals | QF (1989) | 
| Olympic Games | QF (1984, demonstration) | 
| Doubles | |
| Career record | 367–272 | 
| Career titles | 20 | 
| Highest ranking | No. 4 (13 November 1989) | 
| Grand Slam doubles results | |
| Australian Open | SF (1996) | 
| French Open | W (1992) | 
| Wimbledon | SF (1986, 1992) | 
| US Open | SF (1996) | 
| Team competitions | |
| Davis Cup | F (1992) | 
| Hopman Cup | W (1992) | 
Jakob Hlasek (Czech: Jakub Hlásek; born 12 November 1964) is a Swiss former professional tennis player of Czech origin. He won a major doubles title at the 1992 French Open, partnering Marc Rosset.