| Club: | San Jose Earthquakes |
| Season: | 2013 |
| Stadium: | Buck Shaw Stadium |
| League: | Major League Soccer |
| League Result: | Conference: 6th Overall: 10th |
| Chrtitle: | Owner |
| Chairman: | Earthquakes Soccer, LLC |
| Mgrtitle: | Coach |
| Manager: | Mark Watson |
| League Topscorer: | Chris Wondolowski (11) |
| Cup1: | MLS Cup Playoffs |
| Cup1 Result: | Did not qualify |
| Cup2: | U.S. Open Cup |
| Cup2 Result: | Third round |
| Cup3: | CONCACAF |
| Cup3 Result: | Quarterfinals |
| Cup4: | California Clásico |
| Cup4 Result: | 2nd (1-1-1) |
| Cup5: | Heritage Cup |
| Cup5 Result: | 2nd (1-1-0) |
| Cup6: | Timbers Tournament |
| Cup6 Result: | 1st (1–0–2) |
| Pattern La1: | _QUAKES_12h |
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| American: | true |
| Prevseason: | 2012 |
| Nextseason: | 2014 |
The 2013 San Jose Earthquakes season was the club's 16th year of existence, as well as its 16th season in Major League Soccer and its sixth consecutive season in the top-flight of American soccer. Including all previous franchises, this is the 31st year with a soccer club in the San Jose area sporting the name "Earthquakes".
San Jose entered the season as the defending Supporters' Shield winners, having the best regular season in 2012.
See main article: 2012 San Jose Earthquakes season.
As of September 14, 2013.[1]
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See main article: 2013 Major League Soccer season.
See main article: 2013 U.S. Open Cup.
See main article: 2013–14 CONCACAF Champions League.
See also: List of Major League Soccer transfers 2013.
| Pos. | Player | Transferred from | Notes | Date | Ref. |
|---|---|---|---|---|---|
| AaB Fodbold | MLS Weighted lottery | ||||
 Chicago Fire | 2012 MLS Re-Entry Draft Stage Two, Round 2 | [2] | |||
| Toronto FC | 2012 MLS Re-Entry Draft Stage Two, Round 2 | [3] | |||
| Los Angeles Galaxy | 2012 MLS Re-Entry Draft Stage Two, Round 3 | [4] | |||
| Portland Timbers | Trade for 2013 MLS SuperDraft second round draft pick | [5] | |||
| Georgetown | 2013 MLS SuperDraft, round 1 | [6] | |||
| San Diego Orange County Blue Star | 2013 MLS SuperDraft, round 2 | ||||
| Stanford University | 2013 MLS Supplemental Draft, round 1 | [7] | |||
| Oregon State University | 2013 MLS Supplemental Draft, round 3 | [8] | |||
| UC Santa Barbara Ventura County Fusion | 2013 MLS Supplemental Draft, round 4 | [9] | |||
(*) Unsigned
| No. | Pos. | Player | Transferred from | Date |
|---|---|---|---|---|
| 23 | DF | FC Haka | ||
| 7 | MF | Seattle Sounders FC | ||
| 22 | FW | FC Sheriff Tiraspol | ||
| 10 | FW | Chongqing F.C. | ||
| No. | Pos. | Player | Transferred from | Date |
|---|---|---|---|---|
| 44 | DF | Brøndby I.F. | ||
| 22 | DF | Coventry City | ||
| No. | Pos. | Player | Transferred to | Fee/notes | Date | Ref. |
|---|---|---|---|---|---|---|
| 28 | None | Retired | ||||
| 20 | None | Released | ||||
| 14 | None | Out of contract | ||||
| 17 | None | Out of contract | ||||
| 55 | Sporting Kansas City | Traded for Sporting KC's 2013 MLS SuperDraft second round selection | ||||
| 7 | None | Out of contract | ||||
| - | None | Unsigned 2012 MLS Re-Entry Draft Pick | ||||
| 27 | None | Released | ||||
| 12 | None | Retired | [10] | |||
| 3 | None | Out of contract | ||||
| 23 | None | Out of contract | ||||
| 13 | None | Out of contract | ||||
| - | None | Out of contract | ||||
| 19 | None | Out of contract | ||||
| 20 | None | Out of contract | ||||
| 11 | None | Out of contract | ||||