| H. J. Wigmore & Co Ltd | - | Perth | Hupmobile | 7679 | Metro Private Car | 1927-28 |
| H.M. Customs | - | Cossack | - | R 7 | Roebourne Road Board | 1915 |
| Haack | A. M. | Wickepin | Dodge | WK ● 55 | Wickepin Road Board | 1927-28 |
| Haack | J. | Wickepin | Ford | WK ● 195 | Wickepin Road Board | 1926-27 |
| Haack | J. | Wickepin | Ford | WK ● 195 | Wickepin Road Board | 1927-28 |
| Haase | G. G. | Shackleton | Hupmobile | BK ● 144 | Bruce Rock Road Board | 1924-25 |
| Haase | G. G. | Shackleton | Hupmobile | BK ● 144 | Bruce Rock Road Board | 1926-27 |
| Habden | H. C. | Tammin | Chevrolet Truck | ME ● 165 | Meckering Road Board | 1926-27 |
| Haberley | F. W. | Mahogany Creek | Overland | 13386 | Metro Private Car | 1927-28 |
| Habermann | H. | - | Motor Reve 2½ H.P. Motorcycle | CD ● 7 | Cue-Day Dawn Road Board | 1917-18 |
| Habgood | R. H. | Meekatharra | F.W.D. | MK ● 42 | Meekatharra Road Board | 1924-25 |
| Habgood | R. H. | - | Federal Truck | GO ● 185 | Goomalling Road Board | 1926-27 |
| Habgood | R. H. | - | Federal Truck | GO ● 185 | Goomalling Road Board | 1927-28 |
| Hack | B. T. | Williams | Dodge | WL ● 75 | Williams Road Board | 1927-28 |
| Hack | C. C. | Frankland, Cranbrook | Ford | PL ● 90 | Plantagenet Road Board | 1923-24 |
| Hack | C. C. | Kojonup | Ford Truck | KO ● 57 | Kojonup Road Board | 1924-25 |
| Hack | C. C. | Kojonup | Ford | KO ● 86 | Kojonup Road Board | 1924-25 |
| Hack | C. C. | 39 Highway Nedlands | Ford | 2758 | Metro Private Car | 1926-27 |
| Hack | G. G. | Royal Hotel, Perth | Rugby | 7590 | Metro Private Car | 1925-26 |
| Hack | G. G. | Royal Hotel, Perth | Essex | 11337 | Metro Private Car | 1926-27 |
| Hack | M. S. | Scott's Brook | Overland | BU ● 27 | Blackwood (Upper) Road Board | 1923-24 |
| Hack | M. S. | Scotts Brook | Overland | BU ● 2 | Upper Blackwood Road Board | 1924-25 |
| Hack | M. S. | Scotts Brook | Overland | BU ● 2 | Upper Blackwood Road Board | 1925-26 |
| Hack | M. S. | Scotts Brook | Oldsmobile | BU ● 2 | Upper Blackwood Road Board | 1926-27 |
| Hack | M. S. | Scotts Brook | Oldsmobile | BU ● 2 | Upper Blackwood Road Board | 1927-28 |
| Hack & White | - | Broadway Woodyard, Nedlands | Ford Wagon | 8594 | Metro Private Car | 1925-26 |
| Hacket | Fred | 44 Aberdeen Street, Perth | Chrysler | 1759 | Metro Private Car | 1927-28 |
| Hackett | F. | Dowerin | Maxwell | D ● 102 | Dowerin Road Board | 1925-26 |
| Hackett | F. | Dowerin | Maxwell | D ● 102 | Dowerin Road Board | 1926-27 |
| Hackett | F. | Dowerin | Maxwell | D ● 102 | Dowerin Road Board | 1927-28 |
| Hackett | H. J. | 233 Stirling Street | B.S.A. 4¼ H.P. Motorcycle | P 562 | Perth Municipality | 1917-18 |
| Hackett | Lady | 248 Saint George's Terrace | Talbot 15 H.P. | P 375 | Perth Municipality | 1916 |
| Hackett | Sir W. | Saint George's Terrace | Talbot 15 H.P. | P 245 | Perth Municipality | 1915 |
| Hackett | Sir W. | Saint George's Terrace | Cadillac 40 H.P. | P 245 | Perth Municipality | 1916 |
| Hackett | T. | Dowerin | Ford | D ● 112 | Dowerin Road Board | 1925-26 |
| Hackett | T. | Dowerin | Ford | D ● 112 | Dowerin Road Board | 1926-27 |
| Hackett | T. | Dowerin | Ford | D ● 112 | Dowerin Road Board | 1927-28 |
| Hackett | Thomas | - | Ford | CU ● 172 | Upper Chapman Road Board | 1927-28 |
| Hackett Bros | - | - | Ford | CU ● 129 | Upper Chapman Road Board | 1926-27 |
| Hackett Bros | - | - | Ford | CU ● 129 | Upper Chapman Road Board | 1927-28 |
| Hackett McNeil Chambers | F. | Barrack Street, Perth | Maxwell | 11353 | Metro Private Car | 1927-28 |
| Hackfaith | W. H. | 82 Heytesbury Road, Subiaco | Studebaker | 8025 | Metro Private Car | 1925-26 |
| Hackfath | E. | 125 John Street, North Fremantle | Chevrolet | 12311 | Metro Private Car | 1927-28 |
| Hackfath | W. H. | 82 Heytesbury Road, Subiaco | Ford | 8025 | Metro Private Car | 1926-27 |
| Hackshaw | A. | Bencubbin | Reo Truck | MM ● 145 | Mount Marshall Road Board | 1927-28 |
| Hackshaw | H. G. O. | Albany Road, Cannington | Dodge | 341 | Metro Private Car | 1927-28 |
| Hacktath | W. H. | 82 Heytesbury Road, Subiaco | Ford | 8025 | Metro Private Car | 1927-28 |
| Hackworthy | C. W. | Broome Hill | Triumph 3½ H.P. Motorcycle | B 8 | Broome Municipality | 1915 |
| Haddelton | T. E. | Kattaning | Ford | WO ● 5 | Woodanilling Road Board | 1926-27 |
| Hadden | A. B. | 907 Hay Street | De Deon 10 H.P. | P 817 | Perth Municipality | 1916 |
