The 1999 Qatar Open, known as the 1999 Qatar Mobil Open, for sponsorship reasons, was a men's tennis tournament held in Doha, Qatar and part of the World Series of the 1999 ATP Tour. It was the seventh edition of the tournament and was played on hard court and was held from 4 January through 11 January 1999. Unseeded Rainer Schüttler, who entered the draw as a qualifier, won the singles title.
See main article: 1999 Qatar Open – Singles. 
Rainer Schüttler defeated 
Tim Henman, 6–4, 5–7, 6–1
See main article: 1999 Qatar Open – Doubles. 
Alex O'Brien / Jared Palmer defeated Piet Norval / Kevin Ullyett, 6–3, 6–4