| Leon Victor Lachal | |
| Birth Date: | 18 May 1904 |
| Birth Place: | Abbotsford, Victoria |
| Death Place: | Melbourne, Victoria |
| Allegiance: | Australia |
| Branch: | Royal Australian Air Force |
| Serviceyears: | 1926–47 |
| Rank: | Air Commodore |
| Commands: | Eastern Area Command (1945, 1946–47) No. 5 Service Flying Training School (1942) No. 3 Service Flying Training School (1941–42) No. 10 Squadron (1939–40) |
| Battles: | Second World War |
| Awards: | Commander of the Order of the British Empire |
Air Commodore Leon Victor Lachal, CBE (18 May 1904 – 12 March 1983) was a senior commander in the Royal Australian Air Force (RAAF).
|-