| West Region | |
| Last Season: | 2022 Junior League World Series |
| Sport: | Baseball |
| Founded: | 1981 |
| Teams: | 12 |
| Country: |  United States |
| Most Champs: | Southern California (18) |
The Junior League World Series West Region is one of six United States regions that currently sends teams to the World Series in Taylor, Michigan. The region's participation in the JLWS dates back to 1981. It has produced the most JLWS championships (11) by any region.
As of the 2022 Junior League World Series.
| Year | City | JLWS | Record | |
|---|---|---|---|---|
| 1981 | Bassett, Southern California | Third Place | 1–2 | |
| 1982 | Huntington Beach, Southern California | Fourth Place | 1–2 | |
| 1983 | Northridge, Southern California | Third Place | 2–2 | |
| 1984 | Pearl City, Hawaii | Champions | 3–0 | |
| 1985 | Fullerton, Southern California | Not in Top 4 | 0–2 | |
| 1986 | Union City, Northern California | 1–2 | ||
| 1987 | Rowland Heights, Southern California | Champions | 5–1 | |
| 1988 | Hilo, Hawaii | Runner–Up | 3–2 | |
| 1989 | Pearl City, Hawaii | Third Place | 3–2 | |
| 1990 | Aiea, Hawaii | Fourth Place | 2–2 | |
| 1991 | Henderson, Nevada | Runner–Up | 4–2 | |
| 1992 | Tucson, Arizona | Champions | 6–1 | |
| 1993 | Sunnyvale, Northern California | Fourth Place | 2–2 | |
| 1994 | Thousand Oaks, Southern California | Champions | 4–0 | |
| 1995 | Northridge, Southern California | Runner–Up | 5–2 | |
| 1996 | Aiea, Hawaii | 3–2 | ||
| 1997 | Mission Viejo, Southern California | 3–2 | ||
| 1998 | Mission Viejo, Southern California | Champions | 6–1 | |
| 1999 | La Verne, Southern California | Not in Top 4 | 0–2 | |
| 2000 | Aiea, Hawaii | Champions | 4–0 | |
| 2001 | Aiea, Hawaii | 4–1 | ||
| 2002 | Yucaipa, Southern California | US Final | 3–2 | |
| 2003 | La Mirada, Southern California | Champions | 5–1 | |
| 2004 | Pearl City, Hawaii | US Final | 3–2 | |
| 2005 | Pearl City, Hawaii | 3–2 | ||
| 2006 | Pearl City, Hawaii | 3–2 | ||
| 2007 | Pearl City, Hawaii | Champions | 6–0 | |
| 2008 | Hilo, Hawaii | Runner–Up | 4–2 | |
| 2009 | Scottsdale, Arizona | Champions | 6–0 | |
| 2010 | El Monte, Southern California | US Final | 3–2 | |
| 2011 | Tucson, Arizona | 3–2 | ||
| 2012 | Manhattan Beach, Southern California | Not in Top 4 | 1–3 | |
| 2013 | Rio Rico, Arizona | Runner–Up | 4–2 | |
| 2014 | Manhattan Beach, Southern California | US Final | 3–2 | |
| 2015 | Pearl City, Hawaii | Not in Top 4 | 2–2 | |
| 2016 | Kapaa, Hawaii | Runner–Up | 3–1 | |
| 2017 | Encinitas, Southern California | Not in Top 4 | 2–2 | |
| 2018 | Manhattan Beach, Southern California | US Final | 3–2 | |
| 2019 | Fullerton, Southern California | Champions | 4–0 | |
| 2022 | Honolulu, Hawaii | Not in Top 4 | 1–2 | |
| Year | City | JLWS | Record |
As of the 2022 Junior League World Series.
| State | Region Championships | JLWS Championships | |
|---|---|---|---|
| Southern California | align=center | 18 | 5 |
| Hawaii | 15 | 4 | |
| Arizona | 4 | 2 | |
| Northern California | 2 | align=center rowspan=2 | 0 |
| Nevada | 1 | ||
| Totals | 40 | 11 |
West Region in other Little League divisions