| Date: | July 23–29 |
| Edition: | 86th |
| Category: | World Tour 250 |
| Prize Money: | $557,550 |
| Draw: | 28S / 16D |
| Surface: | Hard / outdoor |
| Location: | Los Angeles, California United States |
| Venue: | Los Angeles Tennis Center |
| Champs: |  Sam Querrey[1] |
| Champd: |  Ruben Bemelmans / Xavier Malisse[2] |
| After Year: | no |
| Main Name: | Los Angeles Open (tennis) Los Angeles Open |
The 2012 Farmers Classic, presented by Mercedes-Benz, was a men's tennis tournament played on outdoor hard courts in Los Angeles. It was the 86th edition of the Los Angeles Open, and was part of the Emirates Airline US Open Series of the 2012 ATP World Tour. It took place at the Los Angeles Tennis Center on the campus of UCLA, from July 23 through July 29, 2012, with total player compensation in excess of $1 million. The events were televised by ESPN2 and the Tennis Channel.
Defending champion, second-seeded Sam Querrey, who grew up in nearby Thousand Oaks, defeated Ričardas Berankis for his third Los Angeles title in four years on July 29, 2012.[3] [4] Xavier Malisse teamed up with Ruben Bemelmans this year to win the doubles championship.[5] Querrey would also join fellow Americans, Andre Agassi and Jimmy Connors as the only three men to win 3 or more titles in the Open Era. The 2012 tournament marked the last time an ATP World Tour tournament would be held in Los Angeles.[6] [7]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 France | Benoît Paire | 47 | 1 | |
| Sam Querrey | 55 | 2 | ||
 Argentina | Leonardo Mayer | 64 | 3 | |
| France | Nicolas Mahut | 66 | 4 | |
| Belgium | Xavier Malisse | 71 | 5 | |
 Australia | Marinko Matosevic | 73 | 6 | |
| Björn Phau | 76 | 7 | ||
| Brian Baker | 79 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 Mexico | Santiago González | Scott Lipsky | 68 | 1 | ||
| Colin Ebelthite | Jonathan Marray | 129 | 2 | |||
 United Kingdom | Jamie Delgado | Ken Skupski | 150 | 3 | ||
| Australia | Matthew Ebden | Dominic Inglot | 153 | 4 |
The following pairs received wildcards into the doubles main draw:
The following pair received entry as alternates:
Ryan Sweeting (back injury) Michael Russell (back injury)See main article: 2012 Farmers Classic – Singles.
Sam Querrey defeated 
Ričardas Berankis, 6–0, 6–2See main article: 2012 Farmers Classic – Doubles.
Ruben Bemelmans / Xavier Malisse defeated Jamie Delgado / Ken Skupski, 7–6(7–5), 4–6, [10–7]
