The 1999 BMW Open was a men's tennis tournament played on Clay courts in Munich, Germany that was part of the World Series of the 1999 ATP Tour.

It was the eighty-third edition of the tournament and was held from 26 April until 3 May 1999.

Unseeded Franco Squillari won the singles title.

Franco Squillari defeated Andrei Pavel, 6–4, 6–3.

[2] Daniel Orsanic / Mariano Puerta defeated Massimo Bertolini / Cristian Brandi, 7–6(7–3), 3–6, 7–6(7–3).