Club Deportivo Chivas USA (short form: CD Chivas USA or Chivas USA) is a professional soccer club based in Carson, California, United States and participates in Major League Soccer. The club, founded in 2004, plays its home games at The Home Depot Center, sharing it with arch-rivals the Los Angeles Galaxy. The official colors of Chivas USA are red, white, and blue, the same as Club Deportivo Guadalajara, one of the most widely-supported teams in Mexico.

Founded on August 2, 2004, as Major League Soccer's then-eleventh team, Los Angeles-based Club Deportivo Chivas USA has achieved remarkable success in just three seasons in MLS. In 2007, the Mexican-owned club finished first in the Western Conference, qualifying for the playoffs for the second year in a row to the delight of its passionate supporters.

Chivas USA kicked off its inaugural season in Major League Soccer at The Home Depot Center with a 2-0 loss to the MLS Cup Champions D.C. United on April 2, 2005, under the guidance of Chivas USA’s first head coach Thomas Rongen. After a 1–8–1 start (their sole win coming against fellow expansion club Real Salt Lake), Thomas Rongen was named Chivas USA's sporting director and assistant coach Javier Ledesma becomes the club's interim head coach. On June 3, 2005, Hans Westerhof was named Chivas USA's second head coach. After a disappointing season, Westerhof did not return to coach the team in 2006.

On November 23, 2005, Bob Bradley, the winningest manager in Major League Soccer history, became Chivas USA’s third head coach, replacing Hans Westerhof. Under Bradley, the 2006 season saw a major turnaround for Chivas USA. The team finished the 2006 season with a 10-9-13 record and earned a spot in the Western Conference playoffs. Bradley was named MLS Coach of the Year, becoming the first two-time winner of the award and Chivas USA defender Jonathan Bornstein was named 2006 Gatorade Rookie of the Year. After the season ended, Coach Bradley was named interim head coach of the U.S. Men's National Team and head coach of the U.S. Men's Olympic Team by the U.S. Soccer Federation, and was replaced by Chivas USA’s fourth head coach, Predrag "Preki" Radosavljevic.

The team’s third season, under Preki, was the most successful to date. Chivas USA goalkeeper Brad Guzan was named MLS’s Panasonic Goalkeeper of the Year for the 2007 season. On November 7, 2007, Preki was named MLS Coach of the Year for 2007 after the first-year manager led the Red-and-White to a 15-7-8 record and first place in Major League Soccer’s Western Conference. In January 2008, Preki signed a multi-year contract with Chivas USA securing his position as head coach for the upcoming 2008 season.

August 13, 2006: Chivas USA's "100-Hour Soccer Game", the longest on record in the United States, concluded in the city of Bell Gardens, with Chivas defeating the Rest of the World 437-429 after 6,000 minutes (100 hours) of continuous play. The game, held in celebration of Club Deportivo Guadalajara's 100th anniversary, attracted over 2,000 participants and more than 20,000 fans.

Chivas finished the 2007 MLS season atop of the Western Conference earning the title of MLS Western Conference Champions. However, they lost in the Conference Semifinals of the MLS Cup 2007 playoffs to the Kansas City Wizards, who were placed in the Western #4 seed under new MLS Cup playoff seeding rules despite being in the Eastern Conference.

Union Ultras- Supporters group that exclusively supports Chivas USA.  Legión 1908- Their Los Angeles chapter boasts over 1,000 members that support both Chivas USA and Chivas de Guadalahara. Chivas USA's home uniform bears the same vertical red-and-white stripes of Club Deportivo Guadalajara, and red sleeves, worn with blue shorts and blue socks.

Chivas USA's away uniform bears the same vertical stripes as the home jersey, but has white sleeves, and is worn with white shorts and socks. The rarely-seen away jersey is all blue, and used only when playing FC Dallas in Dallas (which wears red and white horizontal stripes).

On May 16, 2007, Comex, Mexico’s leading paint company, became Chivas USA’s presenting sponsor. Its logo also appears the front of Chivas USA jerseys and training jerseys

FSN West and FSN Prime Ticket have coverage of Chivas USA for the 2008 season. Delivering the most Chivas games on television, the schedule includes 18 regular season games and up to two post-season contests. Christian Miles is the play-by-play announcer, with Bernardo Osuna as analyst and sideline reporter Christine Nubla. The official Spanish-language broadcast partner is W Radio 690 AM and will broadcast all 30 of Chivas USA’s regular-season games during the 2008 season and Azteca America channel 54.