| Kent | Palmer | Bank of Australia Ltd. | Ford 20 H.P. | P 829 | Perth Municipality | 1916 |
| Kent | Rev H. A. | 47 Hay Street, Subiaco | Morris-Cowley | 11269 | Metro Private Car | 1927-28 |
| Kent | Rev. H. A. | 47 Hay Street, Subiaco | Morris-Cowley | 11269 | Metro Private Car | 1926-27 |
| Kent | Sydney | Picton | Ford | BY ● 38 | Bunbury Road Board | 1927-28 |
| Kent | W. H. J. | - | Ford 20 H.P. | GN 24 | Geraldton Municipality | 1915 |
| Kent & Lynch | - | - | Chevrolet Truck | MW ● 85 | Mullewa Road Board | 1927-28 |
| Kent Geo. Ltd | - | Railway Parade, West Perth | Whippet | 14628 | Metro Private Car | 1927-28 |
| Kentish | - | Serpentine | Ford Truck | SJ ● 92 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Kentish | E. | Keysbrook | Ford | SJ ● 76 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Kentucky | W. | Carnarvon | Rugby | CN 81 | Carnarvon Municipal Council | 1925-26 |
| Kenward | F. G. | Datatine | Ford | KA ● 193 | Katanning Road Board | 1925-26 |
| Kenward | F. G. | Datatine | Ford | KA ● 208 | Katanning Road Board | 1925-26 |
| Kenward | F. G. | Datatine | Ford | KA ● 208 | Katanning Road Board | 1926-27 |
| Kenward | F. G. | Katanning | Dodge | KA ● 208 | Katanning Road Board | 1927-28 |
| Kenward | H | Dumbleyung | Overland | DU ● 73 | Dumbleyung Road Board | 1926-27 |
| Kenward | H. | Dumbleyung | Overland | DU ● 73 | Dumbleyung Road Board | 1927-28 |
| Kenward | H. W. | Katanning | Ford | KA ● 96 | Katanning Toad Board | 1922-23 |
| Kenward | H. W. | Katanning | Ford | KA ● 97 | Katanning Road Board | 1923-24 |
| Kenward | H. W. | Katanning | Ford | KA ● 97 | Katanning Road Board | 1924-25 |
| Kenward | H. W. | Datatine | Overland | KA ● 168 | Katanning Road Board | 1925-26 |
| Kenward | M. | Glyde Street, Cottesloe Beach | N.A.G. | 8409 | Metro Private Car | 1925-26 |
| Kenward Bros. | - | Katanning | Douglas 2¾ H.P. Motorcycle | KRB 14 | Katanning Road Board | 1915 |
| Kenward Bros. | - | Katanning | Triumph | KA 14 | Katanning Road Board | 1916 |
| Kenward Bros. | - | Katanning | Triumph | KA 14 | Katanning Road Board | 1919 |
| Kenwood Bros | - | Katanning | Triumph Motorcycle | KA ● 14 | Katanning Road Board | 1917-18 |
| Kenworthy | C. | Westonia | Bean Truck | WT ● 61 | Westonia Road Board | 1927-28 |
| Kenworthy | C. D. | 44 Hill Street, Perth | Fiat | 13808 | Metro Private Car | 1926-27 |
| Kenworthy | C. D. | 44 Hill Street, Perth | Fiat | 13808 | Metro Private Car | 1927-28 |
| Kenworthy | C. D. S. | 44 Hill Street | Harley-Davidson 7 H.P. | P 539 | Perth Municipality | 1919 |
| Kenworthy | C. D. S. | 44 Hill Street, Perth | H. Davidson & Sidecar | 103 | Metro Motorcycle | 1922-23 |
| Kenworthy | D. W. | 672 Beaufort Street, Mount Lawley | Chevrolet | 14868 | Metro Private Car | 1927-28 |
| Kenworthy | Jos. | - | Dodge | GO ● 175 | Goomalling Road Board | 1926-27 |
| Kenworthy | Jos. | - | Dodge | GO ● 175 | Goomalling Road Board | 1927-28 |
| Kenyan | S. | 185 North Beach Road, Mount Hawthorn | Overland | 7663 | Metro Private Car | 1926-27 |
| Kenyan | S. | 185 North Beach Road, Mount Hawthorn | Overland | 7663 | Metro Private Car | 1927-28 |
| Kenyon | F. | 185 North Beach Road, Mount Hawthorn | Buick | 7661 | Metro Private Car | 1927-28 |
| Kenyon | S. | North Beach Road, Mount Hawthorn | Ford Van | 5521 | Metro Private Car | 1927-28 |
| Kenyon | W. | 185 North Beach Road, Mount Hawthorn | Ford Wagon | 4510 | Metro Private Car | 1924-25 |
| Kenyon | W. | 185 North Beach Road, Mount Hawthorn | Ford Wagon | 4510 | Metro Private Car | 1925-26 |
| Kenyon | W. | 185 North Beach Road, Mount Hawthorn | Ford Wagon | 4510 | Metro Private Car | 1926-27 |
| Keogh | J. P. | Clothilde Street, Mount Lawley | - | P 68 | Perth Municipality | 1916 |
| Keogh | L. | C/o Gold Estates Ltd. William Street, Perth | Hupmobile | 8600 | Metro Private Car | 1925-26 |
| Keogh | Mrs R. A. | Newcastle Street, Perth | Ford | 810 | Metro Private Car | 1923-24 |
| Keogh | Mrs R. A. | Newcastle Street, Perth | Ford | 810 | Metro Private Car | 1924-25 |
| Keogh | Mrs R. A. | Newcastle Street, Perth | Ford | 810 | Metro Private Car | 1925-26 |
| Keogh | Mrs R. A. | Newcastle Street, Perth | Ford | 810 | Metro Private Car | 1926-27 |
| Keogh | R. A. | cr. Stirling & Newcastle streets, Perth | Ford | 5132 | Metro Private Car | 1924-25 |
| Keogh | T. | Perenjori | Oakland | PM ● 92 | Perenjori-Morawa Road Board | 1924-25 |
| Keogh | T. | Perenjori | Oakland | PM ● 92 | Perenjori-Morawa Road Board | 1925-26 |
| Keough | Mrs R. | Newcastle Street, Perth | Chevrolet | 239 | Metro Private Car | 1927-28 |
