| Archer | William J. | Tenterden | WA1 | 1927 |
| Archer & Sons | A. W. | Oldfield Locs. 112, 149, 254, Lake king | S4B and 22C, 113A | 1962 |
| Archibald | A. | Plewlands, Osborne Park | K6A | 1924 |
| Archibald | T. A. | H. A. A. 153, Pt. 82, Hamel | T8A and 3D, 109E | 1962 |
| Archibald | Thomas | Graphite Road, Manjimph | T1A | 1928 |
| Arcus | Thos. Henry | Polygon Wood Farm, Kukerin | O9A | 1924 |
| Argent | G. K. | Wm. Locs. 12480, Roe 1267, 4, 554, Lake Grace | S9A and 29B, 50A | 1962 |
| Argent | H. G. & C. J. | Morlake, Kulin | U2A and 11C, 107A | 1962 |
| Argent | R. A. | Wm. Loc. 9506, 12626, 13295, 134408, Lake Grace | R9A and 54F, 43C | 1962 |
| Argent | R. G. | Littlewood, Kulin | 5RA and 58F, 48B | 1962 |
| Argent | W. G. | Willoura, Pingelly | 2GA | 1912 |
| Argent | W. G. | Willoura, Pingelly | 2GA | 1924 |
| Argenta | A. & C. | 76-7, Waroona | 7AA and 13C, 42A | 1962 |
| Argiropoulos | K. P. 7 E. P. | 8, Geraldton | A4K and 19C, 41A | 1962 |
| Argus | J. t. | Greenacres, Mt. Many Peaks, via Albany | 2JA and 84C, 28E | 1962 |
| Argus | Mrs Mary Ann | Grazing area 1227/94, Banda | R8A | 1924 |
| Argus | R. J. | Stanhope, Quairading | 0HA and 38B, 25E | 1962 |
| Argus | T. H. | Stanhope, Dangin | 0HA | 1912 |
| Argus | T. H. | Stanhope, Dangin | 0HA | 1924 |
| Argus Bros. | - | Mt. Carnage Station, Ora Banda | R8A and 22b, 103A | 1962 |
| Argyle | E. M. | Cambula, Borden | E7A and 44B, 105A | 1962 |
| Argyris | A. | Hillcrest, Glen Forrest | SV6 and 11C, 40E | 1962 |
| Ariti | G. | 9, Wanneroo | GA7 | 1962 |
| Ariti | R. V. | Woodvale, Geraldton | R4V and 108B, 50A | 1962 |
| Arkell | Francis | Black Range, Sandstone | FA2 | 1912 |
| Arkell | Francis | Black Range, Sandstone | FA2 | 1924 |
| Arkle | A. S. | 202-3, Bridgetown | C0D and 14B, 118E | 1962 |
| Arkwell | Percy James | Edna May Farm, Moora | PA8 | 1924 |
| Arlidge | P. K. | Willowie, Esperance | PA7 and 15B, 47E | 1962 |
| Armadale-Kelmscott Road Board | - | Armadale Pound, Armadale | AP6 and 50B, 71E | 1962 |
| Armanasco | D. | 438, 440-1, Southern Cross | D2A and 108A, 71B | 1962 |
| Armanasco | E. A. M. | Nelliedale, Southern Cross | WN6 and 50B, 27E | 1962 |
| Armanasco | G. | 399, 401, Southern Cross | GA9 and 19C, 103E | 1962 |
| Armit | Andrew | Inverinary, Yilliminning | V4A | 1924 |
| Armit | J. S. D. | Dalyinross, Wongan Hills | 9NV and 47D, 67E | 1962 |
| Armit | James Stewart Dowie | Dalyinross, Wongan Hills | 9NV | 1924 |
| Armitage | G. H. | Egatemra Farm, Burracoppin | XA0 | 1924 |
| Armitage | J. F. & H. M. | Hill Waters, Waroona | F9A and 14B, 36A | 1962 |
| Armitt | G. M. | 114 Dwyer Rd., Boulder | BP3 | 1962 |
| Armour | F. A. | Thorn Valley, Yallingup | 8PV | 1962 |
| Armstrong | A. E. | Happy Valley, Narrogin | A2A | 1912 |
| Armstrong | A. E. | Gilmore, Kelmscott | SA4 | 1912 |
| Armstrong | A. E. | Happy Valley, Narrogin | A2A | 1924 |
| Armstrong | A. E. | Gilmore, Kelmscott | SA4 | 1924 |
| Armstrong | A. F. L. | May Fair, Harvey | 9FA | 1962 |
| Armstrong | A. H. | Hill Spring, Carnarvon | BQ4 and 48B, 104E | 1962 |
| Armstrong | A. H. G. | Kimberley Downs Station, via Derby | 3AY and 22B, 5E | 1962 |
| Armstrong | A. J. | Leithgow, Jarrahdale | AZ4 | 1924 |
| Armstrong | A. J. | 1999-2004, Tutunup | A6A | 1962 |
| Armstrong | A. R. | Newtown, via Busselton | 9ZY | 1924 |
