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. The tournament was played on hard court and was held from January 4 through January 11. Rainer Schüttler won the singles title.
Rainer Schüttler defeated Tim Henman, 6–4, 5–7, 6–1
- It was Schüttler's 1st title of the career.
Alex O'Brien / Jared Palmer defeated Piet Norval / Kevin Ullyett, 6–3, 6–4