|Fox Sports San Diego|
|Launched||March 17, 2012|
|Network||Fox Sports Networks|
Fox Entertainment Group (
21st Century Fox) (80%)|
(sale of stake to The Walt Disney Company pending; resale to another owner to be determined thereafter )
San Diego Padres (20%)
480i ( SDTV)
|Slogan||We Are Fox Sports. We Are San Diego.|
Spanish (via SAP)
San Diego County|
Las Vegas Valley
Nationwide (via satellite)
|Headquarters||San Diego, California|
|Sister channel(s)||Fox Sports West and Prime Ticket|
|DirecTV ||694 (SD/HD)|
|Dish Network ||439 (SD/HD)|
( San Diego) 
68 & 406 (Spanish; SD)
( Las Vegas) 
(Padres broadcast games only, channel operates as community-access service)
( Tucson) 
( San Diego) 
|61 & 322 (SD/HD)|
( El Centro) 
|20 & 322 (SD/HD)|
( Desert Cities/ Desert Hot Springs) 
|76 & 322 (SD/HD)|
( Yuma) 
|70 & 322 (SD/HD)|
( Hawaii) 
( San Diego) 
( Desert Cities/ Desert Hot Springs) 
|Fox Sports Go||
(U.S. cable internet subscribers only; requires login from participating providers to stream content; some events may not be available due to league rights restrictions imposed by Major League Baseball)
|Sling TV||Internet Protocol television|
Fox Sports San Diego is an American regional sports network that is owned as a joint venture between Fox Cable Networks, a unit of the Fox Entertainment Group division of 21st Century Fox (which owns a controlling 80% stake) and the San Diego Padres (which owns the remaining 20% stake),  and operates as an affiliate of Fox Sports Networks.
The channel broadcasts local coverage of sports events within the San Diego market. Fox Sports San Diego is available on cable providers throughout San Diego County, neighboring Imperial County, as well as the Coachella and Las Vegas Valleys, Southern Arizona and Hawaii; it is also available nationwide on satellite via DirecTV. Within the San Diego market, Cox Communications and Spectrum provide an alternate Spanish play-by-play feed during Padres games via a second audio program feed from the team's Spanish radio network.
The network was established after Fox Sports reached a 20-year broadcast agreement for the regional cable television rights to carry games from the San Diego Padres Major League Baseball franchise, displacing previous rights holder 4SD, a local cable channel owned by Cox Communications. Henry S. Ford, an executive who previously ran operations at Fox's regional sports networks in Detroit and Ohio, was appointed as president and general manager of Fox Sports San Diego. 
Fox Sports San Diego launched on March 17, 2012, with a San Diego Padres spring training game against the Kansas City Royals.  The network started operations with a minimal presence and no dedicated editing facilities or studio; during its first season, Padres game broadcasts were produced from a high-definition production truck inherited from 4SD. Pre-game and post-game shows were also produced from the same truck, and broadcast from a semi-permanent stage in the "Park at the Park" area of Petco Park, using a set inspired by a similar staging used by Fox for major sports events televised nationally. Resources have been shared with other FSN outlets; editing facilities were initially based out of Los Angeles, and master control is co-located alongside Fox's other regional sports networks at a facility near Houston, Texas. 
The network was created as a result of the Padres and Fox Sports signing a 20-year broadcast deal, in which Fox would pay $28 million for rights in the first year and would likely escalate topping out at a potential $75 million in the final year of the contract.  The commentary team of Dick Enberg and Mark Grant remained intact upon the move to the new network, as they are employed by the Padres themselves. 
In addition to the Padres, the channel airs telecasts of professional sports teams (with the exception of baseball) from the neighboring Los Angeles- Orange County market, including the NBA's Los Angeles Clippers and the NHL's Anaheim Ducks and Los Angeles Kings, simulcasting those televised games by its sister network Fox Sports Prime Ticket (blacked out in Imperial County). Fox Sports San Diego also airs Arizona Coyotes games in Imperial County, simulcasting from its sister channel Fox Sports Arizona. Until the team folded in 2014, the network also carried simulcasts of MLS's Chivas USA games from Prime Ticket for the 2012 MLS Season. 
Fox Sports San Diego has also been engaged in discussions with many of the area's college athletic programs including the University of San Diego, San Diego State University, University of California, San Diego, California State University, San Marcos and Point Loma Nazarene;  and Los Angeles area universities including UCLA and the University of Southern California. 
In May 2018, Fox Sports acquired the English-language rights to broadcast the home matches of Liga MX clubs C.F. Monterrey and Club Tijuana across the Fox Sports family of networks, the latter being located in neighboring Tijuana, Baja California, Mexico as well as having an established fan base in the San Diego area. The first match under this contract aired on July 21, 2018 with a match between Tijuana and Guadalajara which was also simulcast nationally on FS1 as well as other nearby Fox Sports regional networks.
- Jesse Agler – backup Padres play-by-play announcer; currently as Padres color commentator for Padres Radio station 97.3 The Fan and former Padres Social Hour host (2014 to 2015)
- Andy Ashby – Padres Live guest analyst
- Steve Finley – Padres Live guest analyst
- Mark Grant – Padres color commentator
- Tony Gwynn Jr. – Padres Live guest analyst
- Nick Hardwick - radio host for Fox Sports Radio station KLSD (1360 AM)
- Steve Hartman – radio host for Fox Sports Radio station KLSD (1360 AM)
- Clay Hensley – Padres Live guest analyst
- Trevor Hoffman – Padres Live guest analyst
- Lisa Lane – Padres POV host and backup Padres sideline reporter
- Mark Loretta – Padres Live guest analyst
- Don Orsillo – Padres play-by-play announcer 
- Mike Pomeranz – Padres Live and Inside San Diego Sports host
- Judson Richards - radio host for Fox Sports Radio station KLSD (1360 AM)
- Bob Scanlan – Padres sideline reporter
- Mark Sweeney – Padres Live analyst and backup Padres color commentator
- Julie Alexandria – Padres sideline reporter (2016)
- Kris Budden – Padres sideline reporter (2014 to 2015)
- Kelly Crull – Padres Weekly host and backup Padres sideline reporter (2013; now anchor/reporter for NBC Sports Chicago)
- Dick Enberg – Padres play-by-play announcer and Cup of Coffee host (2012 to 2016; deceased)
- Tony Gwynn – Padres color commentator (2012 to 2013; deceased)
- Mike Janela – Padres Social Hour host (2016)
- Michelle Margaux – Padres POV host and backup Padres sideline reporter (2016 to 2017, later Tampa Bay Rays reporter for Fox Sports Sun, now Houston Astros reporter on AT&T SportsNet Southwest)
- Andy Masur – backup Padres play-by-play announcer (2012; now radio host on WGN in Chicago)
- Britt McHenry – Padres sideline reporter (2012; now reporter for ESPN)
- Laura McKeeman – Padres sideline reporter, backup Padres Live host, and #SDLive co-host (2013; now host/reporter for CNN)
- Megan Olivi – Padres POV host and Padres social media correspondent (2013; now FS1 and UFC host/correspondent/reporter)
- Kate Osborne – Padres POV host and backup Padres sideline reporter (2014)
- Leila Rahimi – Padres sideline reporter (2012; now host/anchor/reporter for NBC Sports Chicago)
- Ally Sturm – Padres POV host and backup Padres sideline reporter (2015)
Cox Communications and DirecTV have carried the channel since its launch.   Initially, DirecTV only carried Fox Sports San Diego as a part-time feed for live game broadcasts; it later added the dedicated, 24-hour feed on April 1, 2013.  AT&T U-verse reached a carriage deal in September 2012, on the final day of the Padres regular season. Dish Network reached an agreement to carry Fox Sports San Diego on February 7, 2013, adding the channel to its lineup two months later on April 1. 
Of the five major television providers serving the San Diego region, Time Warner Cable (which is now known as Spectrum that serves roughly 22% of the market)  was a notable holdout in carrying the network on launch;  by contrast, during the Padres' later tenure with the channel, TWC did carry 4SD (which was also, by contrast, not offered by U-verse or on satellite providers, leading to complaints filed by AT&T to the Federal Communications Commission that eventually led to the removal of the " terrestrial loophole" in 2010).  In March 2013, the San Diego City Council held a hearing approving a symbolic resolution pressuring Fox and Time Warner Cable to reach a deal by the opening of the 2013 season, citing "the importance of professional baseball in San Diego."  On February 10, 2014, Fox announced that they had finally reached an agreement with TWC to carry Fox Sports San Diego; the provider began carrying the channel on March 30, 2014, in time for the 2014 season. 
- Justice Department Approves Disney’s Acquisition of 21st Century Fox With Divestiture of Regional Sports Networks
- "Channel Finder". Fox Sports San Diego.
- Jay Posner (February 16, 2012). "Fox Sports San Diego to launch in March". U-T San Diego. MLIM Holdings. Retrieved February 20, 2012.
- "MAFFEI: Fox Sports San Diego is close to being reality". North County Times. MLIM Holdings. December 8, 2011. Archived from the original on February 7, 2012.
- Jason Dachman (May 11, 2012). "Fox Sports' San Diego Startup Operates Entire Network Out of One Truck". Sports Video Group. Retrieved May 17, 2012.
- "Don Orsillo begins new chapter with Padres". San Diego Union-Tribune. Retrieved 29 May 2016.
- "PADRES: Fox Sports San Diego ready to launch". North County Times. MLIM Holdings. March 7, 2012. Archived from the original on March 10, 2012.
- "FSSD Launches Full-Time on DIRECTV April 1". Fox Sports San Diego. February 27, 2013.
- "Dish deal leaves TWC as lone Padres holdout". U-T San Diego. MLIM Holdings. February 7, 2013. Retrieved April 5, 2013.
- "Finally, Padres make it onto Time Warner". U-T San Diego. MLIM Holdings. February 10, 2014. Retrieved April 4, 2014.
- "FCC throws Cox a curve on Padres". U-T San Diego. MLIM Holdings. January 21, 2010. Retrieved April 5, 2013.
- "No sign of Fox Sports, Time Warner Padres TV deal". U-T San Diego. MLIM Holdings. March 26, 2013. Retrieved April 5, 2013.