| West Region | |
| Last Season: | 2016 Big League World Series |
| Sport: | Baseball |
| Founded: | 1968 |
| Folded: | 2016 |
| Teams: | 12 |
| Country: |  United States |
| Most Champs: | Southern California (28) |
The Big League World Series (BLWS) West Region was one of five United States regions that sent teams to the World Series. The Big League division of Little League Baseball was discontinued after the 2016 World Series. The region's participation in the BLWS had dated back to 1968.
| Year | City | BLWS | Record | |
|---|---|---|---|---|
| 1968 | Barstow–Victorville, Southern California | Fourth Place | 1–2 | |
| 1969 | Barstow, Southern California | Champions | 4–0 | |
| 1970 | San Fernando/Simi Valley, Southern California | Runner–Up | 3–2 | |
| 1971 | Cupertino, Northern California | Champions | 4–1 | |
| 1972 | Inglewood, Southern California | Runner–Up | 4–2 | |
| 1973 | West Orange County, Southern California | 3–2 | ||
| 1974 | El Cajon, Southern California | Not in Top 4 | 0–2 | |
| 1975 | Aiea, Hawaii | 1–2 | ||
| 1976 | Cupertino, Northern California | Fourth Place | 3–2 | |
| 1977 | Hilo, Hawaii | 2–2 | ||
| 1978 | Third Place | 3–2 | ||
| 1979 | Tucson, Arizona | Not in Top 4 | 1–2 | |
| 1980 | Buena Park, Southern California | Champions | 5–0 | |
| 1981 | Villa Park, Southern California | Not in Top 4 | 0–2 | |
| 1982 | Tucson, Arizona | Third Place | 3–2 | |
| 1983 | Sacramento, Northern California | Not in Top 4 | 2–2 | |
| 1984 | Sacramento, Northern California | Fourth Place | 2–2 | |
| 1985 | Tucson, Arizona | Not in Top 4 | 2–2 | |
| 1986 | San Bernardino, Southern California | 1–2 | ||
| 1987 | Tucson, Arizona | Fourth Place | 3–2 | |
| 1988 | Tucson, Arizona | Not in Top 4 | 1–2 | |
| 1989 | San Leandro, Northern California | 0–2 | ||
| 1990 | Grass Valley, Northern California | 1–2 | ||
| 1991 | Norwalk, Southern California | 0–2 | ||
| 1992 | Victorville, Southern California | 2–2 | ||
| 1993 | Pearl City, Hawaii | US Final | 2–2 | |
| 1994 | Victorville, Southern California | Third Place | 2–2 | |
| 1995 | Aiea, Hawaii | US Final | 3–2 | |
| 1996 | Pearl City, Hawaii | 3–2 | ||
| 1997 | Aiea, Hawaii | Not in Top 4 | 1–2 | |
| 1998 | Thousand Oaks, Southern California | Champions | 5–0 | |
| 1999 | Aiea, Hawaii | US Final | 3–2 | |
| 2000 | Santee, Southern California | 2–3 | ||
| 2001 | Westminster, Southern California | Champions | 5–1 | |
| 2002 | Auburn, Washington | Not in Top 4 | 1–3 | |
| 2003 | Thousand Oaks, Southern California | Runner–Up | 5–1 | |
| 2004 | Anaheim, Southern California | Semifinals | 3–2 | |
| 2005 | Thousand Oaks, Southern California | Runner–Up | 4–2 | |
| 2006 | Thousand Oaks, Southern California | Champions | 7–0 | |
| 2007 | Thousand Oaks, Southern California | Semifinals | 4–1 | |
| 2008 | Anaheim, Southern California | US Final | 3–2 | |
| 2009 | Thousand Oaks, Southern California | Runner–Up | 4–2 | |
| 2010 | Thousand Oaks, Southern California | 4–2 | ||
| 2011 | Alameda County, Northern California | Not in Top 4 | 1–3 | |
| 2012 | Anaheim, Southern California | 3–1 | ||
| 2013 | Thousand Oaks, Southern California | US Final | 3–2 | |
| 2014 | Thousand Oaks, Southern California | Not in Top 4 | 2–2 | |
| 2015 | Thousand Oaks, Southern California | Runner–Up | 4–1 | |
| 2016 | Kihei, Hawaii | 4–2 | ||
| Year | City | BLWS | Record |
| State | Region Championships | BLWS Championships | |
|---|---|---|---|
| Southern California | 28 | 5 | |
| Hawaii | 8 | 0 | |
| Northern California | 7 | 1 | |
| Arizona | 5 | align=center rowspan=2 | 0 |
| Washington | 1 |