The 2011 Qatar Open, known as the 2011 Qatar ExxonMobil Open for sponsorship reasons, was a men's tennis tournament played on outdoor hard courts. It was the 19th edition of the Qatar Open, and part of the ATP World Tour 250 series of the 2011 ATP World Tour. It took place at the Khalifa International Tennis Complex in Doha, Qatar, from January 3 through January 8, 2011. Roger Federer won the singles title.