The 2011 Farmers Classic, presented by Mercedes-Benz, was a tennis tournament played on outdoor hard courts in Los Angeles. It was the 85th edition of the Los Angeles Open, and was part of the Olympus US Open Series of the 2011 ATP World Tour. It took place at the Los Angeles Tennis Center on the campus of UCLA, from July 25 through July 31, 2011, with total player compensation in excess of $1 million. The events were televised by ESPN2 and the Tennis Channel. Following the tournament, a Coldplay concert was held on August 3 and broadcast a portion on ABC's Jimmy Kimmel Live!.
Juan Martin del Potro, who won the 2008 Countrywide Classic and 2009 US Open was one of the first players signed on to play in the tournament. The Argentinean reached a career high of #4 in 2010.