The 2000 UBS Open Gstaad was a men's tennis tournament played on outdoor clay courts at the Roy Emerson Arena in Gstaad in Switzerland and was part of the International Series of the 2000 ATP Tour.

It was the 55th edition of the tournament and ran from 10 July until 17 July 2000.

First-seeded Àlex Corretja won the singles title.

[3] Àlex Corretja defeated Mariano Puerta 6–1, 6–3 Jiří Novák / David Rikl defeated Jérôme Golmard / Michael Kohlmann 3–6, 6–3, 6–4