| Krug | Ernest E. | Davidston, Moora | 1DK | 1912 |
| Krug | Ernest E. | Davidston, Moora | 1DK | 1924 |
| Kruger | C. E. | Turville, Wagin | C3K | 1912 |
| Kruger | C. E. | Turville, Wagin | C3K | 1924 |
| Kruger | C. E. | Camden 79 and 199, Pinjarra | C3K | 1962 |
| Kruger | F. W. | Atherhagen, Wagin | K1A | 1912 |
| Kruger | F. W. | Atherhagen, Wagin | K1A | 1924 |
| Kruger | Max. | Booralaming, Lake Brown | QK4 | 1924 |
| Kruger | R. | Bushland, Ghooli | CG1 and 39C, 26A | 1962 |
| Kruger | W. C. | Commonage, Roebourne | WK4 | 1912 |
| Kruger | W. C. | Commonage, Roebourne | WK4 | 1924 |
| Krummel & Son | - | Kanyanya, Morawa | K1B and 37D, 20E | 1962 |
| Kruse & co. | - | Mundijong | K0B | 1927 |
| Kubach | U. | Nelson 9890-97-98, Northcliffe | ZA7 | 1962 |
| Kubank | N. F. | Clover Bank, Kendenup | 0NK and 103B, 47A | 1962 |
| Kuch | H. | 6208, Borden | 2HK and 32B, 28E | 1962 |
| Kuhl | F. | Roe Loc. 964, 1488, Newdegate | 4FK and 23D, 115E | 1962 |
| Kuhl | F. G. | W.S.L.S. A. 318E, York | 7FK and 47A, 27B | 1962 |
| Kuhl | W. | Collicup Hill, Upper Blackwood | WK7 | 1912 |
| Kuhl | W. | Collicup Hill, Upper Blackwood | WK7 | 1924 |
| Kuhlmann | Hermann Robt. | Moorlands Farm, Ravensthorpe | KU2 | 1924 |
| Kuhne | B. & M. | Victoria Loc. 8511, 9306, Caron | K1K and 32D, 104E | 1962 |
| Kuig | Albert | Glenelg, Gabbin | A2K | 1926 |
| Kulit | A. | 375 and 1103, Warralakin | 7AK and 48B, 33E | 1962 |
| Kumas | Kahn | Commonage, Meekatharra | KQ5 | 1924 |
| Kunicic | Jack | Byford | JK1 | 1926 |
| Kupsch | C. F. | Loc. 2988, Nabawa | AK5 and 47B, 40E | 1962 |
| Kupsch | H. & A. R. | 2284 and Part 3524, Norther Gully, via Geraldton | 9IK and 42C, 46A | 1962 |
| Kupsch | W. R. | 3524, Northern Gully via Geraldton | 3NK and 16C, 107E | 1962 |
| Kupsch Bros. | - | Northern Gully Siding | 3NK | 1924 |
| Kupsch Bros. | - | Water Gully, Nabawa | K6B and 48B, 120E | 1962 |
| Kuser | T. & M. | Battle-Ho, Bencubbin | T7K and 22B, 42E | 1962 |
| Kuser | W. F. | Commonage, Bayswater | 5ZD | 1924 |
| Kushi | Ram | Mount Magnet | K6P | 1912 |
| Kushi | Ram. | Mt. Magnet | K6P | 1924 |
| Kutbiden | - | Menzies | K2B | 1924 |
| Kwinana Grazing Co. | - | Lot 379, Wellard | Z5B and 56F, 45C | 1962 |
| Kwinana Road Board | - | Kwinana Road District Medina | KW3 | 1962 |
| Kyanneby Grazing Co. | - | Kyanneby M. 2125, Gingin | M2E and 13E, 26D | 1962 |
| Kyber & Spoohn | Singh & Singh | Mirani, South Tammin | SZ6 | 1924 |
| Kyle | A. D. & J. E. | 561, Esperance | 2TH and 30B, 29E | 1962 |
| Kyle | A. N. | Calooli Station, Kalgoorle | 4AK and 30B, 44A | 1962 |
| Kyniker | Chas. A. | Rockbank, Bedfordale | 7CR | 1912 |
| Kyniker | Chas. A. | Rockbank, Bedfordale | 7CR | 1924 |
| Kyron | V. | Cowaramup, Cowaramup | 6AK and 112B, 20A | 1962 |
| Kyrwood | Oliver | Saleyards, Midland Junction and Robb's Jetty | 9OK | 1924 |
| L Mont | Norman T. | Ongerup | T3L | 1924 |
| L'Huillier | O. D. | Fern Hill, Mt. Erin, Geraldton | 7OD | 1912 |
| L'Huillier | O. D. | Fern Hill, Mt. Erin | 7OD | 1924 |
| La Bianca | C. & N. | Loc. No. 50, Lot 32, Harvey | 2LB and 107B, 5A | 1962 |
