| Justice Tilly | |
| Birth Date: | 27 January 1888 |
| Birth Place: | Bedford, Bedfordshire, England |
| Allegiance: |  United Kingdom |
| Serviceyears: | 1907–1941 |
| Rank: | Major-General |
| Unit: | Leicestershire Regiment |
| Commands: | 1st Tank Brigade 2nd Armoured Division |
| Awards: | DSO Military Cross |
Major-General Justice Crosland Tilly DSO MC (27 January 1888 – 5 January 1941) was a British Army officer who commanded the 2nd Armoured Division during the early stages of the Second World War.
Born in Bedford in January 1888, and coming from a military family, Tilly was commissioned into the Leicestershire Regiment (later the Royal Leicestershire Regiment) on 12 November 1907. His service in the years prior to World War I were spent with the King's African Rifles in British East Africa.[1] During the war he served on the Western Front with the Machine Gun Corps, being wounded, mentioned in dispatches, and being awarded both the Military Cross and the Distinguished Service Order. The citation for his DSO reads:
Remaining in the army during the difficult interwar period, he married in 1919 before transferring to the West Yorkshire Regiment, with which he served on the North West Frontier of India until 1924. After transferring again, this time to the Royal Tank Corps (later the Royal Tank Regiment) in 1927, he attended the Senior Officers' School, Sheerness in 1931. After commanding the 5th Battalion, Tank Corps in 1934 he became Chief Instructor at the Royal Tank Corps Central School in Bovington in 1935 and then Chief Instructor of the Gunnery Wing at the Armoured Fighting Vehicles School at Lulworth in 1937.[1]
Tilly went on to be Commander of the 1st Tank Brigade from 1938 to 1939 and then served in the Second World War. In May 1940 he was promoted to major general and made General Officer Commanding (GOC) of the 2nd Armoured Division, holding this post until he was killed in a motor accident in January 1941, after his division had been sent to North Africa. He left behind a widow and a daughter.