| 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 |
| Kibben | M. | Beverley | Fiat Truck | BE ● 192 | Beverley Road Board | 1927-28 |
| Kichin | C. | Dalwallinu | Ford | DL ● 50 | Dalwallinu Road Board | 1924-25 |
| Kichin | Chas. | Dalwallinu | Ford | DL ● 50 | Dalwallinu Road Board | 1923-24 |
| Kick | B. B. | Perenjori | Ford | PM ● 4 | Perenjori-Morawa Road Board | 1922-23 |
| Kidd | A. | Carnarvon | Overland Truck | CN 5 | Carnarvon Municipal Council | 1923 - 1924 |
| Kidd | A. | Carnarvon | Overland Truck | CN 5 | Carnarvon Municipal Council | 1924-25 |
| Kidd | A. | Carnarvon | Overland Truck | CN 5 | Carnarvon Municipal Council | 1925-26 |
| Kidd | A. | Carnarvon | Overland Truck | CN 5 | Carnarvon Municipal Council | 1926-27 |
| Kidd | J. E. | Via Yalgoo | Indian 7 H.P. | YA 1 | Yalgoo Road Board | 1916 |
| Kidd | J. E. | Murayarra Station | Triumph 4 H.P. | YA 2 | Yalgoo Road Board | 1916 |
| Kidd | J. E. | Muralgarra | Dodge | YA ● 39 | Yalgoo Road Board | 1922-23 |
| Kidd | J. E. | Eradu | Dodge | G ● 14 | Geraldton Road Board | 1923-24 |
| Kidd | James | 71 Lake Street, East Perth | Chevrolet | 1549 | Metro Private Car | 1927-28 |
| Kidd | R. | Lawlers | Ford 15 H.P. | LA 3 | Lawlers Roads Borad | 1916 |
| Kidd | S. H. | 24 Connolly Street, West Leederville | Humber | 857 | Metro Motorcycle | 1922-23 |
| Kidd | W. | Bridgetown | Ford | B ● 11 | Bridgetown Road Board | 1926-27 |
| Kidd | W. | Donnybrook | Ford | PE ● 172 | Preston Road Board | 1927-28 |
| Kiddie | C. | Badgebup | Ford | KT ● 36 | Kent Road Board | 1925-26 |
| Kiddie | Chas. | Katanning | Chevrolet | KA ● 143 | Katanning Road Board | 1927-28 |
| Kiddle | A. W. | Brandin Street, South Perth | Maxwell Wagon | 10271 | Metro Hire or Trade | 1926-27 |
| 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 |
| Kidman & Co | - | Sidney, Yeeda Station, Derby | Ford | KW ● 6 | West Kimberley Road Board | 1923-24 |
| Kidman & Co | - | Yeeda Station, Derby | Ford | KW ● 6 | West Kimberley Road Board | 1924-25 |
| Kidman & Co | Sidney | Yeeda Station, Derby | Ford | KW ● 6 | West Kimberley Road Board | 1922-23 |
| Kidson | A. B. | 255 Adelaidde Terrace, Perth | Essex | 4894 | Metro Private Car | 1924-25 |
| Kidson | A. B. | 255 Adelaide Terrace, Perth | Essex | 4894 | Metro Private Car | 1925-26 |
| Kidson | A. B. | 258 Adelaide Terrace, Perth | Dodge | 4894 | Metro Private Car | 1926-27 |
| Kidson | A. B. | 258 Adelaide Terrace, Perth | Dodge | 4894 | Metro Private Car | 1927-28 |
| Kidson | A. E. | 27 Gloucester Street, Victoria Park | Ford Wagon | 5692 | Metro Private Car | 1924-25 |
| Kidson | A. E. | 204 William Street, Perth | Dodge | 8641 | Metro Private Car | 1925-26 |
| Kidson | A. E. | 204 William Street, Perth | Dodge | 8641 | Metro Private Car | 1926-27 |
| Kidson | Alfred Bowman | Hotel Fremantle | Enfield 10 H.P. | F 21 | Fremantle Municipality | 1915 |
| Kidson | M. | Maraget River | B.S.A. | AU ● 8 | Augusta Road Board | 1922-23 |
| Kidson | M. | Margaret River | Overland | AU ● 20 | Augusta Road Board | 1924-25 |
| Kidson | M. | Margaret River | Buick | AU ● 20 | Augusta Road Board | 1925-26 |
| Kidson | M. | Margaret River | Dodge | AU ● 28 | Augusta Road Board | 1926-27 |
| Kidson | M. | Margaret River | Dodge | AU ● 28 | Augusta Road Board | 1927-28 |
| Kidson | N. D. | C/o. C. B. Kidson, Parliament House | Triumph 3½ H.P. Motorcycle | P 581 | Perth Municipality | 1916 |
| Kidson Dalgety & Co | N. D. | William Street | Triumph 3½ H.P. Motorcycle | P 486 | Perth Municipality | 1917-18 |
| Kiekeary | M. D. | C/o Colonial Mutual Life Assurance | Armstrong Whitworth 15-20 H.P. | P 606 | Perth Municipality | 1916 |
| Kieley | Jas. | - | Car | CB 41 | Cottesloe Beach Road Board | 1916 |
| Kielman | C. J. | Cannington | Chevrolet | 4813 | Metro Private Car | 1927-28 |
| Kielman | C. J. | Nicholson Road, Cannington | Ford Wagon | 13397 | Metro Private Car | 1927-28 |
| Kiely | Alice | Fairlight Street, Cottesloe Beach | Buick | 14389 | Metro Private Car | 1927-28 |
| Kiely | James | Fairlight Street, Cottesloe Beach | Dodge | 12403 | Metro Private Car | 1927-28 |
