13 Anti-Aircraft Z Regiment RA was formed in August 1941 with three batteries in 4 Anti-Aircraft Division. They formed at Edge Lane, Chorlton-cum-Hardy. 13 Anti-Aircraft Z Regiment RA disbanded in March 1945.
| Aug 41 | Formed | Chorlton-cum-Hardy, Manchester, UK | |
| Aug 41 |  |
4 Anti-Aircraft Division, 44 Anti-Aircraft Brigade | North West England |
| Oct 42 |  |
4 Anti-Aircraft Group, 44 Anti-Aircraft Brigade | North West England |
| Nov 42 | |
Designated “Mixed” | |
| Apr 44 | |
Became 13 Anti-Aircraft Area Mixed Regiment | Salford, Greater Manchester, UK |
| Mar 45 | Disbanded |
Batteries
| Aug 41 | 108, 122, 131 |
| Oct 41 | 108, 122, 131, 184 |
| Nov 41 | 108, 122, 131, 184, 188 |
| Dec 42 | 122, 203, 204, 205, 216 |
Batteries manned by Home Guard
| Battery | Home Guard Unit | Date from |
| 122 Battery | 101 Lancashire (Mixed) | Nov 42 |
| 203 Battery | 102 Lancashire (Mixed) | Jul 42 |
| 204 Battery | 103 Lancashire (Mixed) | Jul 42 |
| 216 Battery | 105 Lancashire (Mixed) | Aug 42 |