| Kiesewether | - | Clayton Plain, Pithara | 0KK | 1924 |
| Kiing | W. T. | Baromba, Moore River | 1WK | 1924 |
| Kiiul | Jacob | East Kimberley | K3M | 1924 |
| Kilbourn | W. A. & G. M. | 4519, Morawa | 6AJ and 4C, 116E | 1962 |
| Kilgallon | A. H. & M. W. | Swan 1829, 2297, Mt. Helena | MK3 and 38C, 84A | 1962 |
| Kilian | W. E. | Farm 2783/3332, Kirupp | KIW | 1924 |
| Killara Pastoral Co. | - | Killara, Meekatharra | 8QJ and 15D, 44E | 1962 |
| Killawarra Pty. Ltd. | - | Killawarra Tambora | K1L and 46B, 12A | 1962 |
| Killerby | B. K. | Sussex Locs. 2860 and 3933, Busselton | B2K and 37C, 47A | 1962 |
| Killerbys Pty. Ltd. | - | Sussex Loc. 3934, Busselton | 7KK and 48D, 106E | 1962 |
| Killey | E. A. | Lynwald, Northampton | E.K.2 | 1912 |
| Killey | E. A. | Lynwald, Northampton | EK2 | 1924 |
| Killey | H. E. | Glen Mona, Wickepin | KH7 | 1912 |
| Killey | H. E. | Glen Mona, Wickepin | KH7 | 1924 |
| Killey | P. T. | Blocks 4555/55,1903/74, Wickepin | PK7 | 1912 |
| Killey | P. T. | Blocks 45555/55 1903/74 | PK7 | 1924 |
| Killey | W. J. | Laxey Glen, Wickepin | KJ0 | 1912 |
| Killick | G. | Loc. 2192, 4692-4, Kalgan River | 8YG and 28A, 45B | 1962 |
| Killick | Roy | Milly Milly Station, via Cue | Q6K | 1926 |
| Killicoat | H. S. | Yunda, Mt Ida | RO6 | 1924 |
| Killmore | - | View Range, Kendenup | M0Z and 14E, 27B | 1962 |
| Kilmaster | J. L. | M. 1811, Dalwallinu | GK3 and 42A, 13B | 1962 |
| Kilmimster | E. R. | Wollarwra Totadjin, via Merredin | REK | 1924 |
| Kilminster | E. & L. | Woolahra, Belka | 0SK and 3D, 118E | 1962 |
| Kilminster | L. P. & B. | Lebran 16936, 13427-8-9, 13425, Belka | 6PB and 103D, 26E | 1962 |
| Kilmurray | Bridget | Common, Dongarra | BK7 | 1912 |
| Kilmurray | Bridget | Common, Dongarra | BK7 | 1924 |
| Kilpatrick | A. | Rossdene, Beverley | K7A | 1924 |
| Kilpatrick | A. | Rosedene, Beverley | K7A and 41D, 5E | 1962 |
| Kilpatrick | B. T. | Linda Valley, East Beverley | K5T | 1924 |
| Kilpatrick | D. A. | Linda Valley Farm, East Narrogin | K5T and 8B, 52F | 1962 |
| Kilpatrick | D. R. F. | Bally Bally, Beverley | D4K and 48D, 11E | 1962 |
| Kilpatrick | Francis W. | Corinna, Manjiup | FOK | 1924 |
| Kilpatrick | G. L. | Avon loc. 3106, 3725, 95, 425, 3735, 3575, 4000, 3574, 927, Beverley | 1GK and 21B, 104E | 1962 |
| Kilpatrick | H. | Loc. 32, Boyanup | Z2K and 111B, 50A | 1962 |
| Kilpatrick | J. H. | Harrisdale, Boyanup | K1E | 1962 |
| Kilpatrick | J. L. | Chimera, Mount Barker | J4K and 30D, 113E | 1962 |
| Kilpatrick | John | Woolyerbing, East Narrogin | 1JK | 1912 |
| Kilpatrick | John | Woolyerbing, East Narrogin | IJK | 1924 |
| Kilpatrick | M. J. | Albury, Boyanup | Z2K | 1924 |
| Kilpatrick | R. D. | Glen Vale, Mt. Kokeby | R1K and 113A, 39B | 1962 |
| Kilpatrick | R. W. | Woolyerling, Narrogin | 1JK and 17C, 8A | 1962 |
| Kilpatrick & Son | D. | Bally Bally Farm, Beverley | D4K | 1924 |
| Kilpin | C. R. | Canterling Brook, Newcastle | RK6 | 1912 |
| Kilpin | Louisa | Bunsty, Toodyay | LK5 | 1912 |
| Kilrain | M. C. & N. F. | Loc. Nelson 11925, Manjimup | M7K and 110D, 8E | 1962 |
| Kilrain & Sons | M. | Gorthnue, Manjimup | M3K and 18B, 48E | 1962 |
| Kim | Ah | Muggs Lagoon, East Kimberley | 1KM | 1912 |
| Kim | Ah | Muggs Lagoon, East Kimberley | 1KM | 1924 |
| Kimber | A. E. | Woodleigh, Wongon Hills | A0K | 1912 |
