The 1999 Rado Swiss Open Gstaad was a men's tennis tournament played on outdoor clay courts at the Roy Emerson Arena in Gstaad, Switzerland and was part of the World Series of the 1999 ATP Tour. It was the 54th edition of the tournament and took place from 5 July until 11 July 1999. Eighth-seeded Albert Costa won the singles title.[1]
See main article: 1999 Rado Swiss Open Gstaad – Singles. 
Albert Costa defeated 
Nicolás Lapentti 7–6(7–4), 6–3, 6–4
See main article: 1999 Rado Swiss Open Gstaad – Doubles. 
Donald Johnson / 
Cyril Suk defeated 
Aleksandar Kitinov / Eric Taino 7–5, 7–6(7–4)