| 2nd Battalion, 23rd Marines | |
|---|---|
 2nd Battalion, 23rd Marines insignia | |
| Active | Early 1920s |
| Country |  United States of America |
| Branch |  United States Marine Corps |
| Type | Infantry battalion |
| Role | Locate, close with and destroy the enemy by fire and maneuver, or to repel the enemy’s assault by fire and close combat. |
| Size | 1000 |
| Part of | 23rd Marine Regiment 4th Marine Division |
| Garrison/HQ | Pasadena, California |
| Nickname(s) | Marshall |
| Motto(s) | "Prepared and Professional" |
| Engagements | World War II |
| Commanders | |
| Current commander | LtCol Ortiz |
| Notable commanders | Lewis C. Hudson |
2nd Battalion, 23rd Marines (2/23) is a reserve infantry battalion in the United States Marine Corps located throughout the Western United States consisting of approximately 1000 Marines and Sailors. They fall under the command of the 23rd Marine Regiment and the 4th Marine Division.