| Unit Name: | No. 6 Airfield Construction Squadron RAAF |
| Dates: | 1942–1945 |
| Country: |  Australia |
| Branch: | Royal Australian Air Force |
| Role: | Airfield construction |
| Battles: | World War II |
No. 6 Airfield Construction Squadron (No. 6 ACS) was a Royal Australian Air Force (RAAF) construction squadron. It was formed as No. 6 Mobile Works Squadron in December 1942 and operated in the New Guinea Campaign and Borneo Campaign during World War II. No. 6 ACS was disbanded in December 1945.