| Udo | Burgdorf | 23 Barrack Street | Studebaker 20 H.P. | P 1167 | Perth Municipality | 1919 |
| Udy | F. G. | Ewington | Chevrolet Truck | CO ● 165 | Collie Road Board | 1927-28 |
| Uffindel | S. A. | Kellerberrin | Ford | KE ● 59 | Kellerberrin Road Board | 1924-25 |
| Uffindell | S. A. | Kellerberrin | I. Rover Motorcycle | KE ● 43 | Kellerberrin Road Board | 1922-23 |
| Uffindell | S. A. | Kellerberrin | Ford | KE ● 59 | Kellerberring Road Board | 1923-24 |
| Uffindell | S. A. | Mill Street, Welshpool | Ford | 5973 | Metro Private Car | 1925-26 |
| Uffindell | S. A. | 55 Labouchere Road, South Perth | Chryster | 598 | Metro Private Car | 1927-28 |
| Uflindell | S. A. | Soldiers' Ward Perth Hospital | Ford | 5973 | Metro Private Car | 1924-25 |
| Ugley Men's Association | - | Saint George's Terrace, Perth | Ford Van | 1079 | Metro Private Car | 1925-26 |
| Uglow | H. W. | 137 Joel Terrace, Mount Lawley | Chevrolet | 9583 | Metro Private Car | 1927-28 |
| Ugly Men's Association | - | Saint George's Terrace, Perth | Ford Wagon | 11159 | Metro Private Car | 1926-27 |
| Ugly Men's Association | - | Saint George's Terrace, Perth | Ford Wagon | 11159 | Metro Private Car | 1927-28 |
| Ugly Mens Association | - | Barrack Street | Cadillac 25 H.P. | P 1256 | Perth Municipality | 1919 |
| Uhe | F. | Goomalling | Rugby | GO ● 106 | Goomalling Road Board | 1924-25 |
| Ulbrich | C. | Brookton | Dodge | BO ● 96 | Brookton Road Board | 1927-28 |
| Ulbrich | W. | 37 Thomas Street, Fremantle | Chevrolet | 6144 | Metro Private Car | 1924-25 |
| Ullman | J. H. | Armadale | Dodge | A-K ● 19 | Armadale-Kelmscott Road Board | 1923-24 |
| Ullman | J. H. | Armadale | Dodge | A-K ● 19 | Armadale-Kelmscott Road Board | 1924-25 |
| Ullman | J. H. | Armadale | Dodge | 8265 | Metro Private Car | 1925-26 |
| Ullman | J. H. | Armadale | Dodge | 8265 | Metro Private Car | 1926-27 |
| Ullman | J. H. | Armadale | Dodge | 8265 | Metro Private Car | 1927-28 |
| Ullrich | J. K. | - | Gray | MW ● 75 | Mullewa Road Board | 1927-28 |
| Ullrich | W. | 37 Thomas Street, South Fremantle | Chevrolet | 6144 | Metro Private Car | 1925-26 |
| Ullrich | W. | 37 Thomas Street, South Fremantle | Chevrolet | 6144 | Metro Private Car | 1926-27 |
| Ullvott | W. L. | Bendering | Standard | CR ● 228 | Corrigin Road Board | 1927-28 |
| Ulsteen | Maxwell | 69 Hensman Road, Subiaco | Ford | 4424 | Metro Private Car | 1927-28 |
| Ulupna Station | - | - | Ford | GM ● 28 | Gascoyne-Minilya Road Board | 1924-25 |
| Ulupna Station | - | Ulupna Station | Ford | GM ● 28 | Gascoyne-Minilya Road Board | 1925-26 |
| Ulupna Station | - | - | Ford | GM ● 28 | Goscoyne-Mililya Road Board | 1926-27 |
| Ulupna Station | - | - | Ford | GM ● 28 | Gascoyne Minilya Road Board | 1927-28 |
| Unbehaun | A. | Victoria Avenue | Ford | C 31 | Claremont Municipality | 1915 |
| Unbehaun | A. | Victoria Avenue | Ford | C 31 | Claremont Municipality | 1916 |
| Unbehaun | A. | Victoria Avenue, Claremont | Willys-Knight | 31 | Metro Private Car | 1922-23 |
| Unbehaun | A. | 42 Victoria Avenue, Claremont | Willys-Knight | 31 | Metro Private Car | 1925-26 |
| Unbehaun | A. | 42 Victoria Avenue, Claremont | Willys- Knight | 31 | Metro Private Car | 1926-27 |
| Unbehaun | A. | 42 Victoria Avenue, Claremont | Willys-Knight | 31 | Metro Private Car | 1926-27 |
| Unbehaun | A. | 42 Victoria Avenue, Claremont | Willys-Knight | 31 | Metro Private Car | 1927-28 |
| Unbehaun | A. C. | Victoria Avenue, Claremont | Car | C ● 31 | Claremont Municipality | 1917-18 |
| Unbehaun | A. C. | Victoria Avenue, Claremont | - | C 31 | Claremont Municipality | 1919 |
| Unbehaun | Albert | 42 Victoria Avenue, Claremont | Willy's-Knight | 31 | Metro Private Car | 1923-24 |
| Unbehaun & Johnson | - | Murray Street, Perth | Ford | 8734 | Metro Private Car | 1925-26 |
| Unbehaun & Johnson | - | 382 Murray Street, Perth | Chevrolet | 345 | Metro Private Car | 1926-27 |
| Unbehaun & Johnson Ltd | - | 37 King Street | New Imperial Jap 2½ H.P. Motorcycle | P 896 | Perth Municipality | 1919 |
| Unbehaun & Johnston | - | King Street, Perth | Ford | 345 | Metro Private Car | 1922-23 |
| Unbehaun & Johnston | - | 383 Murray Street, Perth | Chevrolet | 345 | Metro Private Car | 1925-26 |
| Unbehaun & Johnston | - | 383 Murray Street, Perth | Chevrolet | 345 | Metro Private Car | 1926-27 |
| Unbehaun & Johnston | - | 288 Murray Street, Perth | Ford Wagon | 14914 | Metro Private Car | 1927-28 |
| Unbehaun & Johnston | - | 383 Murray Street, Perth | Chevrolet | 345 | Metro Private Car | 1927-28 |
| Unbehaun & Johnston Ltd | - | 37 King Street | Imperial 2½ H.P. Motorcycle | P 896 | Perth Municipality | 1917-18 |
| Unbehaun & Johnstone | - | 37 King Street | F.N. 2½ H.P. Motorcycle | P 747 | Perth Municipality | 1915 |
