| Country (sports) |  Austria |
|---|---|
| Residence | Vienna, Austria |
| Born | 8 February 1966 Villach, Austria |
| Height | 1.88 m (6 ft 2 in) |
| Turned pro | 1988 |
| Plays | Right-handed |
| Prize money | $1,024,171 |
| Singles | |
| Career record | 106–144 |
| Career titles | 1 |
| Highest ranking | No. 40 (9 July 1990) |
| Grand Slam singles results | |
| Australian Open | 3R (1993, 1994) |
| French Open | 2R (1987, 1990) |
| Wimbledon | 4R (1990) |
| US Open | 3R (1990) |
| Other tournaments | |
| Olympic Games | 1R (1988) |
| Doubles | |
| Career record | 115–126 |
| Career titles | 4 |
| Highest ranking | No. 54 (16 October 1989) |
| Grand Slam doubles results | |
| Australian Open | 2R (1985) |
| French Open | 2R (1989) |
| Wimbledon | 2R (1995) |
| US Open | 3R (1989) |
| Other doubles tournaments | |
| Olympic Games | 2R (1988) |
| Team competitions | |
| Davis Cup | 19–22 |
Alexander Antonitsch (born 8 February 1966) is a former tennis player from Austria, who turned professional in 1988.
Antonitsch won one singles title (1990, Seoul) and four doubles titles during his career. The right-hander reached his highest singles ATP-ranking on 9 July 1990, when he became the world No. 40.
From 1983 to 1996, he was a member of the Austrian Davis Cup team, playing 27 matches, mainly doubles; his biggest Davis Cup success was reaching the semifinals in 1990, when the Austrian team was on the brink of reaching the finals against the later 1990 Davis Cup winner USA.