| Newton Bros | - | Mingenew | Bean Truck | MI ● 75 | Mingenew Road Board | 1927-28 |
| Newton Bros | - | Mingenew | Standard | MI ● 146 | Mingenew Road Board | 1927-28 |
| Nice | C. | Nangeenan | Ford | MD ● 134 | Merredin Road Board | 1925-26 |
| Nice | C. | Nangeenan | Ford | MD ● 134 | Merredin Road Board | 1926-27 |
| Nice | C. | Nangeenan | Rugby | MD ● 134 | Merredin Road Board | 1927-28 |
| Nice | F. E. | 138 Central Avenue, Maylands | Whippet | 14060 | Metro Private Car | 1926-27 |
| Nice | F. E. | 138 Central Avenue, Maylands | Whippet | 14060 | Metro Private Car | 1927-28 |
| Nichalson | E. H. | Busselton | Hudson | BN 33 | Busselton Municipality | 1924-25 |
| Nichcis | Annie | Sherwood Station | Buick Four | MK ● 47 | Meekatharra Road Board | 1926-27 |
| Nichlos | B. | Pantapin | Ford | Q ● 19 | Quairading Road Board | 1924-25 |
| Nichol & Elliot | Wm. E. & John H. | Bowgada | Ford Truck | PM ● 130 | Perenjori-Morawa Road Board | 1927-28 |
| Nicholas | C. A. | The Cloisters Saint George's Terrace, Perth | Austin | 7896 | Metro Private Car | 1925-26 |
| Nicholas | C. A. | The Cloisters, Saint George's Terrace | Austin | 7896 | Metro Private Car | 1926-27 |
| Nicholas | C. G. | Gnowangerup | Dodge | GN ● 100 | Gnowangerup Road Board | 1925-26 |
| Nicholas | C. G. | Gnowangerup | Dodge | GN ● 100 | Gnowangerup Road Board | 1926-27 |
| Nicholas | C. G. | Gnowangerup | Dodge | GN ● 100 | Gnowangerup Road Board | 1927-28 |
| Nicholas | Capt. H. J. | Arthur Head Fremantle | Galloway | 6735 | Metro Private Car | 1927-28 |
| Nicholas | E | Kellerberrin | Ford | KE ● 73 | Kellerberrin Road Board | 1927-28 |
| Nicholas | H. S. | Arthur's Head Fremantle | Galloway | 6735 | Metro Private Car | 1925-26 |
| Nicholas | H. S. | Arthur's Head Fremantle | Galloway | 6735 | Metro Private Car | 1926-27 |
| Nicholas | J. | 64 Thomas Street | Dodge 20 H.P. | P 313 | Perth Municipality | 1917-18 |
| Nicholas | J. | 50 Leonard Street, Victoria Park | Ford | 8843 | Metro Private Car | 1925-26 |
| Nicholas | J. | Peron Peninsula Station, Shark Bay | Chevrolet | SB ● 3 | Shark Bay Road Board | 1925-26 |
| Nicholas | J. | 50 Leonard Street, Victoria Park | Ford | 8843 | Metro Private Car | 1926-27 |
| Nicholas | J. | Peninsula Station, Shark Bay | Chevrolet | SB ● 3 | Shark Bay Road Board | 1926-27 |
| Nicholas | J. | 50 Leonard Street, Victoria Park | Ford | 8843 | Metro Private Car | 1927-28 |
| Nicholas | J. B. | 81 Swansea Street, Victoria Park | Whippet Wagon | 9604 | Metro Private Car | 1927-28 |
| Nicholas | James | John Street, Cottesloe | Dodge 20 H.P. | Ce 13 | Municipality of Cottesloe | 1919 |
| Nicholas | Jas. | John Street | Ford | Ce 13 | Cottesloe Municipality | 1915 |
| Nicholas | L. E. | 34 Gugeri Street, Claremont | Ford | 6452 | Metro Private Car | 1924-25 |
| Nicholas | R. | Kulin | Dodge | KU ● 8 | Kulin Road Board | 1927-28 |
| Nicholas | S A. | 533 Wellington Street, Perth | Essex | 8761 | Metro Private Car | 1926-27 |
| Nicholas | S. A. | 533 Wellington Street, Perth | Overland | 6532 | Metro Private Car | 1924-25 |
| Nicholas | S. A. | 533 Wellington Street, Perth | Overland | 6532 | Metro Private Car | 1925-26 |
| Nicholas | S. A. | 533 Wellington Street, Perth | Oakland | 4444 | Metro Private Car | 1927-28 |
| Nicholas | S. A. | 533 Wellington Street, Perth | Essex | 8761 | Metro Private Car | 1927-28 |
| Nicholas | T. R | Westonia | Morris Truck | WT ● 33 | Westonia Road Board | 1926-27 |
| Nicholas | T. R. | Merriden | Dodge | MD ● 132 | Merredin Road Board | 1925-26 |
| Nicholas | T. R. | Merredin | Dodge | MD ● 132 | Merredin Road Board | 1926-27 |
| Nicholas | T. R. | Merredin | Buick | MD ● 132 | Merredin Road Board | 1927-28 |
| Nicholas | T. R. | Merredin | Morris Truck | WT ● 33 | Westonia Road Board | 1927-28 |
| Nicholas & Co Ltd | - | 41 Pier Street, Perth | Hudson | 4873 | Metro Private Car | 1927-28 |
| Nicholas Aspro Co Ltd | - | Banker Buildings, Perth | Dodge | 6168 | Metro Private Car | 1924-25 |
| Nicholas Aspro Co Ltd | - | Banker Buildings, Perth | Dodge | 6168 | Metro Private Car | 1925-26 |
| Nicholas Aspro Co Ltd | - | Banker Buildings Perth | Dodge | 6168 | Metro Private Car | 1926-27 |
| Nicholas Pty. Ltd | - | 18 Howard Street, Perth | Dodge | 11999 | Metro Private Car | 1927-28 |
| Nicholay | A. | 83 Kitchener Avenue Victoria Park | Chevrolet | 4373 | Metro Private Car | 1927-28 |
| Nicholis | E. | 35 Second Avenue, Claremont | Ford | 4624 | Metro Private Car | 1925-26 |
| Nicholis | Robert | Kondinin | Dodge | KN ● 4 | Kondinin Road Board | 1925-26 |
| Nicholl | W. D. | Katanning | Buick | KA ● 41 | Katanning Road Board | 1917-18 |
