| Liddle | F. | Southern Cross | Essex | YL ● 2 | Yilgarn Road Board | 1925-26 |
| Liddle | F. | Southern Cross | Willys-Knight Hire Car | YL ● 1 | Yilgarn Road Board | 1926-27 |
| Liddle | F. | Southern Cross | Essex Hire Car | YL ● 2 | Yilgarn Road Board | 1926-27 |
| Liddle | R. A. | - | Willys-Knight | YL ● 1 | Yilgarn Road Board | 1927-28 |
| Liddlelow | Julia | 27 Bulwer Street | Dodge 20 H.P. | P 327 | Perth Municipality | 1919 |
| Liddlelow | Mrs J. | 27 Bulwer Street, Perth | Essex | 327 | Metro Private Car | 1923-24 |
| Liddlelow | Mrs J. | 27 Bulwer Street, Perth | Essex | 327 | Metro Private Car | 1925-26 |
| Liddleton | W. H. | Albany Road, Queen's Park | Ford truck | 3102 | Metropolitan Hire and Trade Cars | 1923-24 |
| Liebe | E. W. G. | Wubin | Ford | DL ● 41 | Dalwallinu Road Board | 1927-28 |
| Liebeck | S. E. | Mount Barker | Chevrolet | PL ● 133 | Plantagenet Road Board | 1927-28 |
| Liebig | W. C. D. | Narrogin | Ford 20 H.P. | NGN 17 | Narrogin Municipality | 1915 |
| Liebig | W. C. D. | Narrogin | Ford 20 H.P. | NGN 17 | Narrogin Municipality | 1916 |
| Liebig | W. C. D. | Narrogin | Ford 20 H.P. | NGN 17 | Narrogin Municipality | 1917-18 |
| Liebig | W. C. D. | Narrogin | Ford 20 H.P. | NGN 17 | Narrogin Municipality | 1919 |
| Liebig | W. C. D. | Narrogin | Ford | NGN 17 | Narrogin Municipality | 1923-24 |
| Liebig | W. C. D. | Narrogin | Ford | NGN 17 | Narrogin Municipality | 1924-25 |
| Liebig | W. C. D. | Narrogin | Ford | NGN 17 | Narrogin Municipality | 1925-26 |
| Liebig | W. C. D. | Kondinin | Ford Truck | KN ● 74 | Kondinin Road Board | 1926-27 |
| Liebig | W. C. D. | Kondinin | Ford Truck | KN ● 74 | Kondinin Road Board | 1927-28 |
| Liebow | W. | Canning Mills | Dodge | DR ● 14 | Darling Range Road Board | 1923-24 |
| Liebow | W. | Canning Mills | Dodge | DR ● 14 | Darling Range Road Board | 1924-25 |
| Liebow | W. | Canning Mills | Chrysler | DR ● 106 | Darling Range Road Board | 1927-28 |
| Liebow | W. J. | Canning Mills | Chrysler | DR ● 106 | Darling Range Road Board | 1926-27 |
| Lies | J. W. | Narembeen | Oldsmobile | NB ● 9 | Narembeen Road Board | 1926-27 |
| Lies | W. E. | 168 Barker Road, Subiaco | Studebaker | 4949 | Metro Private Car | 1925-26 |
| Life Ins. Co Aust. Ltd | - | 135 St.Geroge's Terrace | Dodge | 5362 | Metro Private Car | 1926-27 |
| Liggins & Hawkins | - | 99 Williams Street | Ford 20 H.P. | P 1324 | Perth Municipality | 1919 |
| Light | - | 118 Hobart Street, Mount Hawthorn | Ford | 6271 | Metro Private Car | 1925-26 |
| Light | A. & C. | 118 Hobart Street, Mount Hawthorn | Ford | 6271 | Metro Private Car | 1924-25 |
| Light | C. L. | 116 Hobart Street, Mount Hawthorn | Ford Wagon | 6403 | Metro Private Car | 1927-28 |
| Light | E. E. | Market Street | B.S.A. 15 H.P. | G 21 | Guildford Municipality | 1915 |
| Light | E. E. | Market Street, Guildford | B.S.A. | G 21 | Guildford Municipality | 1916 |
| Light | E. E. | Market Street, Guildford | B.S.A. | G 21 | Guildford Municipality | 1917-18 |
| Light | E. E. | Market Street, Guildford | B.S.A. 18 H.P. | G 21 | Guildford Municpality | 1919 |
| Light | P. Frazer | Nungarin | Dodge | NA ● 22 | Nungarin Road Board | 1923-24 |
| Light | W. C. A. | 116 Hobart Street, Mount Hawthorn | Ford Wagon | 6403 | Metro Private Car | 1924-25 |
| Light | W. C. A. | 116 Hobart Street, Mount Hawthorn | Ford Wagon | 6403 | Metro Private Car | 1925-26 |
| Light | W. C. A. | 116 Hobart Street, Mount Hawthorn | Ford Wagon | 6403 | Metro Private Car | 1926-27 |
| Light Bros | - | 118 Hobart Street, Mount Hawthorn | Ford | 11062 | Metro Private Car | 1926-27 |
| Light Bros | - | 118 Hobart Street, Mount Hawthorn | Ford | 11062 | Metro Private Car | 1927-28 |
| Light of Asia Gold Mine | - | Cue | Ford 15 H.P. | CD ● 9 | Cue-Day Dawn Road Board | 1919 |
| Lightfoot | A. A. | Thirlmere Road, Mount Lawley | Ford | 599 | Metro Private Car | 1927-28 |
| Lightfoot | A. E. | Charles Street, South Perth | Buick | 1317 | Metro Private Car | 1927-28 |
| Lightfoot | F. | Perth | De Dion 10 H.P. | P 723 | Perth Municipality | 1917-18 |
| Lightley | W. | Melbourne Hotel, Perth | Dodge | 7207 | Metro Private Car | 1925-26 |
| Lightley | W. | Melbourne Hotel, Perth | Dodge | 7207 | Metro Private Car | 1926-27 |
| Lightley | W. | Melbourne Hotel, Perth | Dodge | 7207 | Metro Private Car | 1927-28 |
| Lillan | L. J. P | 44 Farmer Street, North Perth | Chevrolet | 13765 | Metro Private Car | 1927-28 |
| Lillbury | F. R. | 16 Coade Street, Mount Lawley | J.A.P. & Sidecar | 344 | Metro Motorcycle | 1922-23 |
| Lilles | Miss I. | Newcastle Club Hotel, Perth | Dodge | 11703 | Metro Private Car | 1926-27 |
