17 Anti-Aircraft Z Regiment RA formed in October 1942 at Carlton Barracks, Leeds with four batteries. The Regiment disbanded in March 1945.
| Oct 42 | Formed | Leeds, Yorkshire, UK | |
| Oct 42 |  |
5 Anti-Aircraft Group, 31 Anti-Aircraft Brigade | North East England |
| May 43 | |
5 Anti-Aircraft Group, 57 Anti-Aircraft Brigade | North East England |
| Apr 44 | |
Became 17 Anti-Aircraft Area Mixed Regiment | |
| Mar 45 | Disbanded |
Batteries
| Oct 42 | 170, 206, 207, 212 |
| Dec 42 | 170, 206, 207, 212, 225 |
Batteries manned by Home Guard
| Battery | Home Guard Unit | Date from |
| 170 Battery | 102 West Riding (Mixed) | Nov 42 |
| 206 Battery | 103 West Riding (Mixed) | Jul 42 |
| 212 Battery | 101 York (Mixed) | Jul 42 |
| 225 Battery | 107 West Riding (Mixed) | Nov 42 |