| Northern Brewery | - | Northam | Ford | N ● 117 | Northam Road Board | 1926-27 |
| Northern Municipal Council | - | - | Thornycroft Truck | N 20 | Northam Municipality | 1926-27 |
| Northern Trading Co | - | Roebourne | Chevrolet Truck | R ● 38 | Roebourne Road Board | 1927-28 |
| Northern Trading Co | - | Tableland | Thornycroft Truck | TB ● 20 | Tableland Road Board | 1927-28 |
| Northern Trading Co | - | Tableland | Repubic Truck | TB ● 21 | Tableland Road Board | 1927-28 |
| Northery | H. | 40 Fitzgerald Street, Perth | Rugby | 6803 | Metro Private Car | 1925-26 |
| Northey | A. J. | Gabbin | Durrant | MM ● 146 | Mount Marshall Road Board | 1927-28 |
| Northey | E. H. | Orova Links | Ford | K ● 47 | Kalgoorlie Road Board | 1926-27 |
| Northey | E. H. | Orova Links | Ford | K ● 47 | Kalgoorlie Road Board | 1927-28 |
| Northey | H. | 400 Fitzgerald Street, Perth | Rugby | 6803 | Metro Private Car | 1926-27 |
| Northey | H. | 400 Fitzgerald Perth | Rugby | 6803 | Metro Private Car | 1927-28 |
| Northey | J. | Burbridge | Dodge | YL ● 31 | Yilgarn Road Board | 1924-25 |
| Northey | J. | Burbidge | Dodge | YL ● 31 | Yilgarn Road Board | 1925-26 |
| Northey | O. | Fitzgerald Street | Chryster | N 248 | Northam Municipality | 1927-28 |
| Northmore | C. C. | Narembeen | Crossley | NB ● 108 | Narembeen Road Board | 1924-25 |
| Northmore | C. C. | Narembeen | Crossley | NB ● 1 | Narembeen Road Board | 1925-26 |
| Northmore | C. C. | Narembeen | Crossley | NB ● 1 | Narembeen Road Board | 1926-27 |
| Northmore | C. C. | Narembeen | Crossley | NB ● 1 | Narembeen Road Board | 1927-28 |
| Northmore | R. W. | Narembeen | Hupmobile | NB ● 125 | Nareembeen District Road Board | 1926-27 |
| Northmore | R. W. | Narembeen | Hupmobile | NB ● 125 | Narembeen Road Board | 1927-28 |
| Northover | J. E. | 609 Wellington Street, Perth | Overland | 4943 | Metro Private Car | 1924-25 |
| Northover & Co | J. E. | 609 Wellington Street | Morris-Cowley | 5773 | Metro Private Car | 1925-26 |
| Northover & Co | - | 609 Wellington Street, Perth | Buick | 9303 | Metro Private Car | 1925-26 |
| Northover & Co | - | 609 Wellington Street, Perth | Buick | 9303 | Metro Private Car | 1926-27 |
| Northover & Co | - | E. S. & A. Bank Chambers, William St. | Buick | 9303 | Metro Private Car | 1927-28 |
| Northover & Co | J. E. | 609 Wellington Street, Perth | Morris-Cowley | 5773 | Metro Private Car | 1924-25 |
| Northwood | F. J. | Narrogin | Studebaker | NGN 34 | Narrogin Municipality | 1925-26 |
| Northwood | H. | 200 McDonald Street, Kalgoorlie | Dodge | KMC ● 78 | Kalgoorlie Municipality | 1923-24 |
| Northwood | H. | 200 McDonald Street | Dodge | KMC 78 | Kalgoorlie Municipality | 1924-25 |
| Northwood | H. | 200 MacDonald Street | Dodge | KMC 78 | Kalgoorlie Municipal Council | 1925-26 |
| Northwood | T. | Hannan Street, Kalgoorlie | Dodge | KMC 78 | Kalgoorlie Municipal Council | 1926-27 |
| Northwood | T. | Hannan Street, Kalgoorlie | Dodge | KMC 78 | Kalgoorlie Municipal Council | 1927-28 |
| Nortney | D. | Canegrass | Ford Truck | K ● 113 | Kalgoorlie Road Board | 1925-26 |
| Norton | A. | 86 Addis Street | Dealer's License | KMC 3 | Kalgoorlie Municipal Council | 1925-26 |
| Norton | A. | Merredin | Ford | MD ● 312 | Merredin Road Board | 1927-28 |
| Norton | Ada | 197 James Street, Guildford | Ford Wagon | 14876 | Metro Private Car | 1927-28 |
| Norton | Alex | - | - | KAN 1 | Kanowna Municipality | 1915 |
| Norton | Alex | Barton Street, East Kalgoorlie | Ford 20 H.P. | K ● 57 | Kalgoorlie Road Board | 1922-23 |
| Norton | C. S. J. | Ventnor 55 Wolcott Street | Douglas 2¾ H.P. Motorcycle | P 326 | Perth Municipality | 1917-18 |
| Norton | Cyrill G. | 307 Stirling Street, Perth | Buick | 2749 | Metro Private Car | 1927-28 |
| Norton | Edward | Narriup | Ford | PL ● 102 | Plantagenet Road Board | 1927-28 |
| Norton | G. | 33 Walcott Street | Kerry Abingdon 3½ H.P. Motorcycle | P 724 | Perth Municipality | 1915 |
| Norton | G. J. | 34 Congdon Street, Mount Lawley | Chevrolet | 2411 | Metro Private Car | 1924-25 |
| Norton | G. J. | 34 Congdon Street, Mount Lawley | Chevrolet | 2411 | Metro Private Car | 1925-26 |
| Norton | G. J. | Redmond | Chevrolet | A ● 57 | Albany Road Board | 1926-27 |
| Norton | G. J. | Mount Lawley | Chevrolet | 2411 | Metro Private Car | 1926-27 |
| Norton | G. J. | Cherkerup | Chevrolet | A ● 57 | Albany Road Board | 1927-28 |
| Norton | G. J. | 34 Congdon Street, Swanbourne | Renault | 2411 | Metro Private Car | 1927-28 |
| Norton | G. S. J. | 55 Walcott Street | Douglas 2¾ H.P. Motorcycle | P 326 | Perth Municipality | 1919 |
| Norton | G. S. J. | 55 Walcott Street, Mount Lawley | Chevrolet | 2411 | Metro Private Car | 1922-23 |
