| Navy | The Royal Australian Navy |
| Type | Minesweeper |
| Class | Bathurst |
| Pennant | J 242 |
| Built by | Morts Dock & Enginering Co. Ltd. (Sydney, New South Wales, Australia) |
| Ordered | 24 Sep 1940 |
| Laid down | 18 Apr 1941 |
| Launched | 30 Aug 1941 |
| Commissioned | 6 Jan 1942 |
| End service | 30 Sep 1983 |
| Loss position | |
| History | Decomissioned into Reserve at Sydney on 27 November 1945. |
Commands listed for HMAS Colac (J 242)
Please note that we're still working on this section.
| Commander | From | To | ||
| 1 | T/Lt.Cdr. Dudley Charles Northam, RANR(S) | 8 Dec 1941 | 2 Aug 1942 | |
| 2 | Lt. William Slevin Reynolds, RANR | 3 Aug 1942 | 25 Oct 1942 | |
| 3 | T/Lt.Cdr. Spence Bernard Komoll, RANR(S) | 26 Oct 1942 | 4 Jun 1943 | |
| 4 | T/A/Lt.Cdr. Eric John Barron, RANR(S) | 5 Jun 1943 | 10 Jun 1943 | |
| 5 | Lt. William George Whitting, DSC, RANR(S) | 11 Jun 1943 | Aug 1944 | |
| 6 | Cdr. Alan Paterson Cousin, RANR(S) | 21 Dec 1943 | Jan 1944 | |
| 7 | Lt. Kenneth James Hopper, RANR(S) | 18 Oct 1944 | 10 Oct 1945 | |
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