15 Anti-Aircraft Z Regiment RA formed in September 1941 at Eastmead, Derby with two batteries. The Regiment disbanded in April 1945.
| Sep 41 | Formed | Derby, Derbyshire, UK | |
| Sep 41 |  |
2 Anti-Aircraft Division, 66 Anti-Aircraft Brigade | East Midlands, UK |
| Aug 42 | |
2 Anti-Aircraft Division, 50 Anti-Aircraft Brigade | East Midlands, UK |
| Oct 42 |  |
5 Anti-Aircraft Group, 50 Anti-Aircraft Brigade | East Midlands, UK |
| Apr 44 | Unbrigaded Became 15 Anti-Aircraft Area Mixed Regiment |
Derby, Derbyshire, UK | |
| Apr 45 | Disbanded |
Batteries
| Sep 41 | 180, 181 |
| Oct 41 | 120, 180, 181 |
| Oct 42 | 120, 126, 180, 181, 195 |
| Dec 42 | 120, 180, 181, 219 |
Batteries manned by Home Guard
| Battery | Home Guard Unit | Date from |
| 120 Battery | 102 Derbyshire (Mixed) | Nov 42 |
| 219 Battery | 102 Nottinghamshire (Mixed) | Sep 42 |