| Tobias | E. R. | Kellerberrin | Dealers License | KE ● 132 | Kellerberrin Road Board | 1926-27 |
| Tobias | E. R. | Kellerberrin | Overland | KE ● 202 | Kellerberrin Road Board | 1926-27 |
| Tobias | E. R. | Kellerberrin | Dealer's License | KE ● 132 | Kellerberrin Road Board | 1927-28 |
| Tobias | E. R. | Kellerberrin | Dealers | KE ● 333 | Kellerberrin Road Board | 1927-28 |
| Toe | G. F. | Barker Road, Subiaco | Triumph | 896 | Metro Motorcycle | 1922-23 |
| Tohan | M. | Bedfordale | Studebaker | A-K ● 120 | Armadale-Kelmscott Road Board | 1926-27 |
| Toledo-Berkel Pty Ltd | - | 837 Hay Street, Perth | Morris Cowley | 1134 | Metro Private Car | 1927-28 |
| Tolerton | J. V. | Kellerberrin | Ford 20 H.P. | KE 10 | Kellerberrin Road Board | 1916 |
| Tolerton | J. V. | Kellerberrin | Ford 20 H.P. | KE ● 10 | Kellerberrin Road Board | 1917-18 |
| Tolerton | J. V. | Kellerberrin | Ford 20 H.P. | KE 10 | Kellerberrin Road Board | 1919 |
| Tolerton | J. V. | Kellerberrin | Hupmobile | KE ● 107 | Kellerberrin Road Board | 1925-26 |
| Tolerton | J. V. | Kellerberrin | Hupmobile | KE ● 107 | Kellerberrin Road Board | 1926-27 |
| Tolerton | J. V. | Kellerberrin | Hupmobile | KE ● 107 | Kellerberrin Road Board | 1927-28 |
| Tollerton | J. V. | Kellerberrin | Hupmobile | KE ● 107 | Kellerberrin Road Board | 1924-25 |
| Tomalin | N. B. | Kellerberrin | Ford 20 H.P. | KE ● 7 | Kellerberrin Road Board | 1917-18 |
| Tomba | G. | 62 Market Street, Fremantle | Ford Wagon | 10381 | Metro Hire or Trade | 1927-28 |
| Tomlinson | H. | Chapman Road, Geraldton | Kelthorpe | GN 46 | Geraldton Municipality | 1922-23 |
| Tomlinson | H. | Champan Road, Geraldton | Kelthorpe | GN ● 46 | Geraldton Municipality | 1923-24 |
| Toms | A. | Badgebup | Studebaker | KA ● 28 | Katanning Road Board | 1925-26 |
| Toms | A. | Badgebup | Studebaker | KA ● 28 | Katanning Road Board | 1926-27 |
| Toms | A. | Badgebup | Studebaker | KA ● 28 | Katanning Road Board | 1927-28 |
| Toms | A. E. | 15 Blake Street, North Perth | Dodge | 1319 | Metro Private Car | 1924-25 |
| Tonjona | C. S. | 48 Burt Street, North Perth | Studebaker | 8006 | Metro Private Car | 1925-26 |
| Tooke | W. | Dardanup | Ford Truck | DA ● 25 | Dardanup Road Board | 1927-28 |
| Tookell | W. E. | Bunbury | Essex | BY 84 | Bunbury Municipality | 1926-27 |
| Tooker | A. E. | 123 Chelmsford Road, North Perth | Dort | 6662 | Metro Private Car | 1927-28 |
| Torwara | R. | Northam | Studebaker | N ● 137 | Northam Road Board | 1925-26 |
| Tottenham | C. E. P. | Newmarket Hotel, Leederville | Ford 20 H.P. | P 254 | Perth Municipality | 1916 |
| Tottenham | C. E. R. | Newmarket Hotel | B.S.A. 3½ H.P. Motorcycle | P 254 | Perth Municipality | 1915 |
| Totterdell | D. | 33 Barker Road, Subiaco | Willys-Knight | 645 | Metro Private Car | 1926-27 |
| Totterdell | E. | 33 Barker Road, Subiaco | Overland | 184 | Metro Private Car | 1926-27 |
| Totterdell | Joseph | 31 Barker Road, Subiaco | Overland | 461 | Metro Private Car | 1923-24 |
| Totterdell | S. | 33 Barker Road, Subiaco | Overland | 645 | Metro Private Car | 1922-23 |
| Totterdell | S. | 33 Baker Road, Subiaco | Willys-Knight | 645 | Metro Private Car | 1924-25 |
| Totterdell | S. | 33 Barker Road, Subiaco | Willys-Knight | 645 | Metro Private Car | 1925-26 |
| Totterdell | S. | 33 Barker Road, Subiaco | Willys-Knight | 645 | Metro Private Car | 1927-28 |
| Totterdell | Samuel | 33 Barker Road, Subiaco | Overland | 645 | Metro Private Car | 1923-24 |
| Townley | Mrs E. M. | McKenzie Street, Palmyra | Overland | 6157 | Metro Private Car | 1924-25 |
| Townsend | J. | Meckering | Morris-Cowley | ME ● 122 | Meckering Road Board | 1927-28 |
| Tramlett | E. | Tammin | Chevrolet | ME ● 201 | Meckering Road Board | 1926-27 |
| Tranter | C. O. | Pingrup | Chevrolet Truck | KT ● 49 | Kent Road Board | 1927-28 |
| Tranter | C. O. | Pingrup | Rugby | KT ● 57 | Kent Road Board | 1927-28 |
| Treasure | E. | Cunderdin | Ford Truck | ME ● 238 | Meckering Road Board | 1926-27 |
| Treasure | E. | Cunderdin | Ford Truck | ME ● 238 | Meckering Road Board | 1927-28 |
| Treasure & Carrington | - | Wagin | Studebaker 12 H.P. | WM 6 | Wagin Municipality | 1917-18 |
| Trebley | W. | Baandee | Ford Truck | KE ● 71 | Kellerberrin Road Board | 1925-26 |
| Trebley | W. | Baandee | Ford | KE ● 80 | Kellerberrin Road Board | 1925-26 |
| Trebley | W. | Baandee | Ford Truck | KE ● 71 | Kellerberrin Road Board | 1926-27 |
| Trebley | W. | Baanoco | Ford | KE ● 213 | Kellerberrin Road Board | 1926-27 |
| Trebley | W. | Baandee | Ford Truck | KE ● 71 | Kellerberrin Road Board | 1927-28 |
