| Rocke | T. | 30 Keightley Road, Subiaco | Crossley 15 H.P. | P 393 | Perth Municipality | 1915 |
| Rocke | Theo. | 122 Aberdeen Street | Scat 15 H.P. | P 393 | Perth Municipality | 1919 |
| Rocke & Trenwith | - | 122 Aberdeen Street, Perth. | Buick 18 H.P. | P 292 | Perth Municipality | 1917-18 |
| Rocke & Trenwith | - | 30 Keightley Road, Subiaco | Seat 15 H.P. | P 393 | Perth Municipality | 1917-18 |
| Rockett | Dr. | Wellington Street | Ford 20 H.P. | N 28 | Northam Municipality | 1916 |
| Rockett | Dr. R. N. | Wellington Street | Ford 20 H.P. | N 28 | Northam Municipality | 1915 |
| Rockett | Dr. R. N. | Wellington Street | Ford 20 H.P. | N 28 | Northam Municipality | 1919 |
| Rockingham District Road Board | - | Rockingham | Ford Truck | RO ● 40 | Rockingham Road Board | 1926-27 |
| Rockingham District Road Board | - | Rockingham | Ford Truck | RO ● 40 | Rockingham Road Board | 1927-28 |
| Rocks | M&K. | Point Walter | Gray | 1988 | Metro Private Car | 1926-27 |
| Rocks | Mary K. | Point Walter | Gray | 1988 | Metro Private Car | 1927-28 |
| Rocks | Miss M. | Point Walter Tea Rooms | Overland | 1988 | Metro Private Car | 1924-25 |
| Rocks | Miss M. & K. | Point Walter Tea Rooms | Gray | 1988 | Metro Private Car | 1925-26 |
| Rocscoe | J. W. | Harvey Street, Cottesloe Beach | Hudson | 3298 | Metro Hire or Trade | 1926-27 |
| Rodan | J. | Noongall | Dodge 20 H.P. | YA ● 25 | Yalgoo Road Board | 1919 |
| Rodan | J. | Noongall | Indian 5 H.P. | YA ● 10 | Yalgoo Road Board | 1919 |
| Rodan | J. | Noongal | Dodge 23 H.P. | YA ● 25 | Yalgoo Road Board | 1922-23 |
| Rodan | J. | Noongal | Dodge 25 H.P. | YA ● 25 | Yalgoo Road Board | 1923-24 |
| Rodan | J. | Noongal | Dodge | YA ● 25 | Yalgoo Road Board | 1924-25 |
| Rodan | Jas. | Yalgoo | Indian 7 H.P. | YA 10 | Yalgoo Road Board | 1916 |
| Rodan & Sons | - | Noongal Station, Yalgoo | Dodge | YA ● 70 | Yalgoo Road Board | 1925-26 |
| Rodan & Sons | - | Noongal Station, Yalgoo | Dodge | YA ● 70 | Yalgoo Road Board | 1926-27 |
| Rodan & Sons | - | Noongal Station, Yalgoo | Dodge | YA ● 70 | Yalgoo Road Board | 1927-28 |
| Rodcreda | C. G. | Walebing | Dodge | M ● 90 | Moora Road Board | 1927-28 |
| Rodd | F. J. | Shackleton | Chevrolet Truck | BK ● 261 | Bruce Rock Road Board | 1927-28 |
| Rodd | Wm. Junr. | Kwobrup | Ford | KT ● 22 | Kent Road Board | 1927-28 |
| Rodda | R. D. | 10 Walter Street, Claremont | Austin | 7363 | Metro Private Car | 1927-28 |
| Rodda | W. | Nannup | Ford Truck | BL ● 17 | Lower Blackwood Road Board | 1925-26 |
| Rodda | W. | Nannup | Ford Truck | BL ● 17 | Nannup Road Board | 1926-27 |
| Rodderick | J. | Corrigin | Rugby | CR ● 178 | Corrigin Road Board | 1926-27 |
| Roderada | C. | Indarrie | Ford 20 H.P. | M 26 | Moora Road Board | 1919 |
| Rodereda | A. P. | 133 Charles Street, West Perth | Morris-Oxford | 11700 | Metro Private Car | 1926-27 |
| Rodereda | A. P. | 133 Charles Street, West Perth | Morris-Oxford | 11700 | Metro Private Car | 1927-28 |
| Rodereda | C. | Walebing | Ford | M ● 26 | Moora Road Board | 1924-25 |
| Rodereda & Kelly | - | Otley Place Murray Street, Perth | Chevrolet | 14852 | Metro Private Car | 1927-28 |
| Rodger | G. J. | Forest Dept Cathedral Avenue, Perth | Essex | 5855 | Metro Private Car | 1924-25 |
| Rodger | G. J. | Forrest Dept. Cathedral Avenue, Perth | Essex | 5855 | Metro Private Car | 1925-26 |
| Rodgers | A. | Margaret River | Dodge | AU ● 105 | Augusta Road Board | 1927-28 |
| Rodgers | C. J. | Brunswick | Overland | H ● 89 | Harvey Road Board | 1924-25 |
| Rodgers | C. J. | Brunswick | Overland | H ● 89 | Harvey Road Board | 1925-26 |
| Rodgers | George | Australind | Chevrolet Truck | BY ● 41 | Bunbury Road Board | 1927-28 |
| Rodgers | H. F. | Dalgety House, Esplanade | Douglas 2¾ H.P. Motorcycle | P 716 | Perth Municipality | 1915 |
| Rodgers | H. F. | Gnowangerup | Ford 19 H.P. | GN ● 34 | Gnowangerup Road Board | 1922-23 |
| Rodgers | H. F. | Gnowangerup | Ford | GN ● 37 | Gnowangerup Road Board | 1923-24 |
| Rodgers | H. F. | Gnowangerup | Ford | GN ● 37 | Gnowangerup Road Board | 1924-25 |
| Rodgers | H. F. | Gnowangerup | Gray | GN ● 37 | Gnowangerup Road Board | 1925-26 |
| Rodgers | H. F. | Gnowangerup | Gray | GN ● 37 | Gnowangerup Road Board | 1926-27 |
| Rodgers | J. | Brunswick | Buick | H ● 71 | Harvey Road Board | 1927-28 |
| Rodgers | L. H. | Lion Mill | Ford | GE ● 6 | Greenmount Road Board | 1923-24 |
| Rodgers | M. J. | Australind | Buick | H ● 72 | Harvey Road Board | 1924-25 |
