| Unit Name: | 39 Service Battalion |
| Dates: | 2010–present |
| Country: | Canada |
| Branch: | Canadian ArmyPrimary Reserve |
| Role: | Combat service support |
| Size: | 4 companies |
| Command Structure: | 39 Canadian Brigade Group |
| Type: | Service battalion (combat service support) |
| Garrison: | Richmond, British Columbia |
| Motto: | la|Concordia victrix|A good spirit conquers |
| Commander1: | LCol A.M. Foort, |
| Commander1 Label: | Commanding officer |
| Commander2: | CWO M. Morrison,, |
| Commander2 Label: | Regimental sergeant major |
| Identification Symbol 4: | 39 Svc Bn |
| Identification Symbol 4 Label: | Abbreviation |
39 Service Battalion (39 Svc Bn; French: links=no|39<sup>e</sup> Bataillon des services) is a Canadian Army Primary Reserve combat service support unit of the Canadian Forces that can fight in a defensive role and provides both logistical and army engineering maintenance support to the units within 3rd Canadian Division's 39 Canadian Brigade Group, which consists of all Primary Reserve army units in British Columbia.
Prior to 2010, 39 Canadian Brigade Group (39 CBG), which is the headquarters responsible for all Primary Reserve army units in British Columbia, had two individual service battalions under its chain of command. The two individual service battalions were 11 (Victoria) Service Battalion and 12 (Vancouver) Service Battalion.
In 2010, the two individual service battalions in 39 Canadian Brigade Group were amalgamated into the two companies that make up the new 39 Service Battalion.
39 Service Battalion is composed of four companies.