| Kesssell | S. | 1092 Hay Street, Perth | Ford | 5249 | Metro Private Car | 1924-25 |
| Kestel | W. J. | 198 Goderich Street, Perth | Chrysler | 14276 | Metro Private Car | 1927-28 |
| Kett | A. E. | Pingrup | Rugby Truck | KT ● 82 | Kent Road Board | 1927-28 |
| Ketteringham | W. | Narembeen | Ford Wagon | NB ● 151 | Narembeen Road Board | 1927-28 |
| Kevill | G. V. | Quairading | Ford Truck | Q ● 138 | Quairading Road Board | 1927-28 |
| Kevsley | G. | - | Studebaker | W ● 18 | Wagin Road Board | 1926-27 |
| Kewney | A. V. | - | Douglas 2¾ H.P. Motorcycle | KMC 38 | Kalgoorlie Municipality | 1915 |
| Kewney | A. V. | Maritana Street | Dougles 3 ½ H.P. | KMC 38 | Kalgoorlie Municipality | 1916 |
| Kewney | H. V. | Collins Street | Indian 7½ H.P. | KMC 55 | Kalgoorlie Municipality | 1919 |
| Kewrrinigal | C. | Williams | Chevrolet | WL ● 2 | Williams Road Board | 1926-27 |
| Kewshaw | Hilda | Brookton | Overland | BO ● 29 | Brookton Road Board | 1925-26 |
| Kewshaw | Hilda | Brookton | Fiat | BO ● 29 | Brookton Road Board | 1926-27 |
| Keys | D. | Mundijong | Ford Truck | SJ ● 27 | Serpentine-Jarrahdale Road Board | 1925-26 |
| Keys | D. | Mundijong | Ford Truck | SJ ● 27 | Serpentine-Jarrahdale Road Board | 1926-27 |
| Keys | D. | Mundijong | Rugby | SJ ● 29 | Serpentine-Jarrahdale Road Board | 1926-27 |
| Keys | D. | Mundijong | Ford T ruck | SJ ● 27 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Keys | D. | Mundijong | Rugby | SJ ● 29 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Keys | E. J. | - | Vulcan | D ● 140 | Dowerin Road Board | 1926-27 |
| Keys | F. | Kings Park Road, Perth | Chrysler | 9426 | Metro Private Car | 1926-27 |
| Keys | F. | Kings Park Road, Perth | Chrysler | 9426 | Metro Private Car | 1927-28 |
| Keys | Mrs | Mundijong | Rugby | SJ ● 29 | Serpentine-Jarrahdale Road Board | 1925-26 |
| Keyser | C. | Railway Street, Queens Park | Republic | 3560 | Metro Private Car | 1924-25 |
| Keyser | T. | Broome | F.W.D Wagon | BM ● 55 | Broome Road Board | 1925-26 |
| Keyser | T. | Broome | Overland Truck | BM ● 39 | Broome Road Board | 1926-27 |
| Keyser | T. | Broome | Overland Truck | BM ● 39 | Broome Road Board | 1927-28 |
| Keyser & Wittern | - | Bolgart | Graham Truck | VP ● 83 | Victoria Plains Road Board | 1927-28 |
| Keyte | R. E. | - | Ford | NR ● 36 | Northampton Road Board | 1926-27 |
| Keyte Bros | - | - | Chevrolet | NR ● 117 | Northampton Road Board | 1926-27 |
| Kidd | James | 71 Lake Street, East Perth | Chevrolet | 1549 | Metro Private Car | 1927-28 |
| Kiddie | C. | Badgebup | Ford | KT ● 36 | Kent Road Board | 1925-26 |
| Kiddle | A. W. | Byford | International Truck | A-K ● 133 | Armadale-Kelmscott Road Board | 1926-27 |
| Kiddle | A. W. | Armadale | Soat | A-K ● 133 | Armadale-Kelmscott Road Board | 1927-28 |
| Kiddle | A. W. | Byford | International Truck | A-K ● 140 | Armadale-Kelmscott Road Board | 1927-28 |
| Kiekeary | M. D. | C/o Colonial Mutual Life Assurance | Armstrong Whitworth 15-20 H.P. | P 606 | Perth Municipality | 1916 |
| Kiely | John | Kelmscott | Chevrolet | A-K ● 43 | Armadale-Kelmscott Road Board | 1923-24 |
| Kiely | John | Kelmscott | Chevrolet | A-K ● 43 | Armadale-Kelmscott Road Board | 1924-25 |
| Kiely | T. J | Wickepin | Ford | WK ● 73 | Wickepin Road Board | 1926-27 |
| Kiely | T. J. | Wickepin | Ford | WK ● 73 | Wickepin Road Board | 1925-26 |
| Kiely | T. J. | Wickepin | Oldsmobile | WK ● 244 | Wickepin Road Board | 1927-28 |
| Kiely | Thos J. | Wickepin | Ford | WK ● 73 | Wickepin Road Board | 1924-25 |
| Kieran | J. G. | Meckering | Ford Truck | ME ● 46 | Meckering Road Board | 1926-27 |
| Kieran | J. G. | Meckering | Ford Truck | ME ● 46 | Meckering Road Board | 1927-28 |
| Kierman | B. S. | Keane Street, Cottesloe | Fiat | 5155 | Metro Private Car | 1924-25 |
| Kiernan | B. S. | Keane Street, Cottesloe | Fiat | 5155 | Metro Private Car | 1925-26 |
| Kiernan | B. S. | Keane Street, Cottesloe | Fiat | 5155 | Metro Private Car | 1926-27 |
| Kiesey | E. W. | Pithara | Studebaker | DL ● 34 | Dalwallinu Road Board | 1926-27 |
| Kiesey | E. W. | Pithara | Studebaker | DL ● 34 | Dalwallinu Road Board | 1927-28 |
| Kilner | R. | Holyoake | Ford | MY ● 85 | Murray Road Board | 1925-26 |
| Kilner | R. | Holyoake | Ford | MY ● 85 | Murray Road Board | 1926-27 |
| Kilpatrick | B. T. | Normans Lake | Dodge | NA ● 28 | Narrogin Road Board | 1924-25 |
