| 9th Engineer Support Battalion | |
|---|---|
 9th ESB | |
| Active | 1 November 1965 – present |
| Country | United States |
| Allegiance | United States of America |
| Branch | United States Marine Corps |
| Role | Engineering support |
| Part of | 3rd Marine Logistics Group III Marine Expeditionary Force |
| Garrison/HQ | Camp Hansen, Okinawa, Japan |
| Nickname(s) | Team 9 |
| Motto(s) | "Excellence in Engineering" |
| Engagements | Vietnam War Operation Enduring Freedom Operation Iraqi Freedom |
| Commanders | |
| Current commander | LtCol Christopher A. Thrasher (June 2023 – present) |
The 9th Engineer Support Battalion (9th ESB) is a general and direct engineering support unit of the United States Marine Corps and is headquartered at Camp Hansen, Okinawa, Japan. The unit is subordinate to the 3rd Marine Logistics Group and the III Marine Expeditionary Force.