|Date of birth||February 3, 1958|
|Place of birth||Guayaquil, Ecuador|
|Union Deportiva Valdez|
|1982–1983||Los Angeles Lazers (indoor)||17||(1)|
|1990||California Emperors (assistant)|
|1992–1993||Los Angeles Salsa (assistant)|
|1992–1994||East Los Angeles Cobras|
|1996–1997||Los Angeles Galaxy (assistant)|
|1997–1999||Los Angeles Galaxy|
|2009–2011||Sporting KC ( Head Assistant Coach)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Octavio Zambrano (born February 3, 1958 in Guayaquil) is one of the winningest coaches in Major League Soccer (MLS), an Ecuadorian soccer coach and former player with international experience. Zambrano holds a UEFA "A" diploma and a USSF "A" coaching cicense. He is the manager and Technical Director for Club Deportivo El Nacional.
Zambrano was an attacking midfielder and made his professional debut with Union Deportiva Valdez of the Ecuadorian First Division, moved to the United States from his native Ecuador in 1980 to attend Chapman University, and later played two seasons with the Los Angeles Lazers in the Major Indoor Soccer League.
In 1990, he was an assistant coach to Rildo Menezes (Ex-Santos of Brasil and New York Cosmos) with the California Emperors in the American Professional Soccer League. In 1992, he became both the assistant coach with the Los Angeles Salsa of the APSL and head coach of the East Los Angeles Cobras of USISL. He also coached the successful largely ethnic team from Southern California, LA Salsa U-19, a McGuire Cup finalist. He was the 1994 USISL Western Division Coach of the Year. Following his work with the LA Salsa Zambrano was hired as Director by the Mission Viejo Pateadores, one of the United States Top Soccer Academies. He joined MLS as an assistant for Lothar Osiander with Los Angeles Galaxy and assumed head coaching duties when Osiander was fired early in the 1997 season. Zambrano's 1997 team went from last in the conference (3-9) to a record of 15-13 and made the play offs. The 1998 Galaxy went 24 and 8 and broke all MLS scoring records, ending the year with 85 goals scored, the 1998 Galaxy became the first North American professional soccer team to make it to a CONCACAF clubs final against Cruz Azul of Mexico. But in the playoffs they faltered, falling to expansion team Chicago Fire. Five games into the 1999 season, Zambrano was fired, the Galaxy made it to the MLS final the same year, losing against DC United.
Zambrano re-surfaced as the head coach of the New York MetroStars in 2000, replacing the famous and much traveled Bora Milutinovic. He coached the team for three years, following a promising two years winning the first trophy for the franchise, an MLS Eastern Division championship, and playing in two league semifinals, with a disappointing third. Zambrano was fired after the 2002 season, Zambrano still holds the best league and goal scoring record amongst all MetroStars/Red Bull Coaches, a list that includes some famous coaches amongst them: Carlos Queiroz, Alberto Parreira, Bora MIlutinovic, Bruce Arena, Juan Carlos Osorio and Bob Bradley. From 2003 to 2006 Zambrano served a three-year term as elected Vice-President of FENODE (Ecuadorian/American Sports Federation).
In 2006, he was hired as the head coach for CS Tiligul-Tiras Tiraspol in Moldova. In 2008, after successfully taking Tiligul from the relegation zone to a fourth place overall, he left Tiligul and moved to FC Tatabánya in the Hungarian Soproni Liga. In 2009, he left Tatabanya and was hired by FIFA to write the CONCACAF Technical Report for the Gold Cup 2009. On December 3, 2009 Zambrano was hired by Kansas City Wizards now Sporting KC as assistant head coach, during his two-year term Sporting KC went from a non play-off team to the league semifinals and within one goal of the MLS 2011 final.
In January 2012 Zambrano was named head coach for Deportivo Pereira of the Columbian Categoría Primera B.  Deportivo Pereira during the second semester of 2012 broke the record of points obtained in a single season by any Colombian professional soccer team since the installment of short tournaments. The team obtained 43 out 54 possible points and went unbeaten at home for 11 months and 20 days and was the highest scoring team in the league and the least scored against. During the first tournament of 2013, after a good start a string of injuries to main players in the defense coincided with a failure to secure a victory in four consecutive games and left the team out of the group of 8. In April of 2013 the President and owner of Deportivo Pereira Alvaro Lopez Bedoya, opted to relieve Octavio Zambrano of his coaching duties and assigned him those of Manager and Technical Director. Zambrano resigned his position in November 2013.
In June 2014, Zambrano became a TV game analyst for the Ecuadorian International Network Ecuavisa, as a member of Codigo Mundial, the highest-rated World Cup show in Ecuadorian TV; his participation in this show opened the door to take the reins of Club El Nacional, getting the club out of the relegation zone and into the group of 6, trying to secure a berth into Conmebol's International Tournaments: Copa Sudamericana and Copa Libertadores.
- "MLS: Zambrano is MetroStars head coach, Revolution hands reins to Clavijo.". soccertimes.com. Retrieved May 30, 2015.
- "Octavio Zambrano - MetroStars / Red Bull New York - Major League Soccer". metrofanatic.com. Retrieved May 30, 2015.
- "Zambrano shortchanged by MLS". ESPNFC.com. Retrieved May 30, 2015.
- "Zambrano to manage Deportivo Pereira in 2012". Sporting Kansas City. Retrieved May 30, 2015.