| Illingworth | L. Mrs | Bunbury | Buick | BY 73 | Bunbury Municipality | 1923 - 1924 | 
| Illingworth | W. | Esperance | Ford | EO ● 1 | Esperance Road Board | 1926-27 | 
| Illsley | Mrs B. A. | Albany | Fiat | A 153 | Albany Municipality | 1927-28 | 
| Ilsley | E. M. | 146 Heytesbury Road | Car | S 13 | Subiaco Municipality | 1917-18 | 
| Ilsley | J. | Denmark | Dodge | DE ● 74 | Denmark Road Board | 1927-28 | 
| Ilum | G. | Yalgoo | Ford | NN ● 25 | Nannine Road Board | 1927-28 | 
| Immigration Department | - | Perth | Ford | 8163 | Metro Private Car | 1926-27 | 
| Ince | A. | 27 Waugh Street, North Perth | Rugby | 7316 | Metro Private Car | 1925-26 | 
| Ince | Adelaide | 80 Rookwood Street, Mount Lawley | Rugby | 7316 | Metro Private Car | 1926-27 | 
| Ince | Adelaide | 80 Rockwood Street, Mount Lawley | Rugby | 7316 | Metro Private Car | 1927-28 | 
| Income Tax Compiler Co | - | Perth | Overland | 2314 | Metro Private Car | 1922-23 | 
| Incubator Repair Co | - | 12 Townsend Road, Subiaco | Essex | 2803 | Metro Private Car | 1926-27 | 
| Ing | W. H. | 143 Hay Street, Subiaco | Dodge | 11179 | Metro Private Car | 1926-27 | 
| Ing | W. H. | 143 Hay Street, Subiaco | Dodge | 11179 | Metro Private Car | 1927-28 | 
| Ingelfinger | H. | Swanbourne Terrace, Cottesloe | Essex | 3120 | Metro Private Car | 1924-25 | 
| Ingham | W. L. | Ardath | Dodge | BK ● 150 | Bruce Rock Road Board | 1927-28 | 
| Inglefinger | H. | Swanbourne Terrace | Ford 20 H.P. | Ce ● 40 | Cuballing Road Board | 1917-18 | 
| Inglefinger | H. | Swanbourne Terrace | Ford 20 H.P. | Ce 40 | Municipality of Cottesloe | 1919 | 
| Inglefinger | H. | Swanbourne Terrace, Cottesloe | Essex | 3120 | Metro Hire or Trade | 1925-26 | 
| Inglefinger | H. | Swanbourne Terrace, Cottesloe | - | 3120 | Metro Hire or Trade | 1926-27 | 
| Inglefinger | Hugh | Swanbourne Terrace, Cottesloe | Studebaker | 3120 | Metropolitan Hire and Trade Cars | 1923-24 | 
| Inglefinger | Hugh | Swanbourne Terrace, Cottesloe | Hudson | 3120 | Metro Hire or Trade | 1927-28 | 
| Ingles | P. | 40 Park Road, North Perth | Essex | 13153 | Metro Private Car | 1926-27 | 
| Inglis | E. A. | Burracoppin | Chevrolet | MD ● 296 | Merredin Road Board | 1927-28 | 
| Inglis | J. | Boyup Brook | Dodge | BU ● 98 | Upper Blackwood Road Board | 1926-27 | 
| Inglis | J. | Boyup Brook | Dodge | BU ● 98 | Upper Blackwood Road Board | 1927-28 | 
| Inglis | Percy | 40 Park Road, North Perth | Essex | 13153 | Metro Private Car | 1927-28 | 
| Ingliston Consils | G. M. | Meekatharra | Ford Truck | MK ● 37 | Meekatharra Road Board | 1927-28 | 
| Ingliston Consils | G. M. | Meekatharra | Ford | MK ● 38 | Meekatharra Road Board | 1927-28 | 
| Ingolby | Dr  F. J. | Albany | Dodge | A 44 | Albany Municipality | 1927-28 | 
| Ingolby | Dr F. J. | Garlner Street | Ford | A 98 | Albany Municipality | 1922-23 | 
| Ingoldby | D. J. F. | Mount Barker | Dodge | PL ● 44 | Plantagenet Road Board | 1924-25 | 
| Ingoldby | Dr | Albany | Dodge | A 34 | Municipality of Albany | 1926-27 | 
| Ingoldby | Dr J. F. | Mount Barker | Dodge | PL ● 44 | Plantagenet Road Board | 1925-26 | 
| Ingoldby | Dr J. F. | Mount Barker | Dodge | PL ● 44 | Plantagenet Road Board | 1926-27 | 
| Ingoldby | F. J. | 11 Havelock Street | Ford 20 H.P. | P 1225 | Perth Municipality | 1919 | 
| Ingram | A. L. | 15 Marmion Street, North Perth | Gray | 5774 | Metro Private Car | 1924-25 | 
| Ingram | A. L. | 15 Marmion Street, North Perth | Citroen | 5774 | Metro Private Car | 1925-26 | 
| Ingram | C. R. | 60 Peninsula Road, Maylands | Ford | 2642 | Metro Private Car | 1924-25 | 
| Ingram | C. R. | 5th Avenue, Inglewood | Oldsmobile | 2642 | Metro Private Car | 1925-26 | 
| Ingram | C. R. | Inglewood | Oldsmobile | 2642 | Metro Private Car | 1926-27 | 
| Ingram | C. R. | 5th Avenue, Inglewood | Oldsmobile | 2642 | Metro Private Car | 1927-28 | 
| Ingram | E. | Collie Burn | Overland | CO ● 16 | Collie Road Board | 1922-23 | 
| Ingram | E. | Collie Burn | Overland | CO ● 16 | Collie Road Board | 1923-24 | 
| Ingram | E. | Collie Burn | Overland | CO ● 16 | Collie Road Board | 1924-25 | 
| Ingram | E. | Collie Burn | Oakland | CO ● 16 | Collie Road Board | 1925-26 | 
| Ingram | E. | Collie Burn | Oakland | CO ● 16 | Collie Road Board | 1926-27 | 
| Ingram | E. | Collie Burn | Oakland | CO ● 16 | Collie Road Board | 1927-28 | 
| Ingram | E. W. G | Mahogany Creek | Bean Wagon | 5207 | Metro Private Car | 1927-28 | 
| Ingram | H. | 29 Barrack Street | Fiat | 13588 | Metro Private Car | 1926-27 |