Gilbert Schaller
Gilbert Schaller, is a former professional tennis player from Austria.
Schaller achieved a career-high singles ranking of World No. 17 in 1995. At the 1995 French Open, Schaller upset World No. 2 Pete Sampras in the first round in a five set match.
Schaller won one singles title and reached the quarterfinals of the 1996 Hamburg Masters and the 1995 Monte Carlo Masters. He participated in 7 Davis Cup ties for Austria from 1993 to 1997, posting a 3–6 record in singles. Schaller resided in Graz when a tour player. From 2007 to 2011, he was Captain of the Austrian Davis Cup-Team and sports director of the ÖTV. Schaller currently works as the sports director in the , and as an ATP coach with.Career finals
Singles (1 title, 3 runner-ups)
| Result | No. | Date | Tournament | Surface | Opponent | Score |
| Win | 1. | 1995 | Casablanca, Morocco | Clay |  Albert Costa | 6–4, 6–2 |
| Loss | 1. | 1995 | Bucharest, Romania | Clay |  Thomas Muster | 3–6, 4–6 |
| RLoss | 2. | 1995 | Valencia, Spain | Clay |  Sjeng Schalken | 4–6, 2–6 |
| Loss | 3. | 1996 | Casablanca, Morocco | Clay | Tomás Carbonell | 5–7, 6–1, 2–6 |
