| Kramp | W. | Draper's Asst. | Fremantle | 1888 | WA Almanack |
| Kramp | W. | Drapers Assistant | Fremantle | 1889 | WA Almanack |
| Krebs | H. F. | | Money Street, Perth | 1897 | Witton's Directory |
| Kretchmar | J. | Miner | Nannine | 1897 | Witton's Directory |
| Krischock | W. | General Merchant | Essex Street, Fremantle | 1897 | Witton's Directory |
| Kritchmar | W. | Architect | Geraldton | 1897 | Witton's Directory |
| Krocket | O. | Commission Agent | Nannine | 1897 | Witton's Directory |
| Kross | A. | Shipwright | Perth | 1887 | WA Almanack |
| Kross | A. | Shipwright | Perth | 1888 | WA Almanack |
| Kross | A. | Shipwright | Perth | 1889 | WA Almanack |
| Krueger | Fritz | Watchmaker | Bunbury | 1885 | Herald Almanack |
| Krug | E. | | Charles Street, Perth | 1897 | Witton's Directory |
| Krug | E. | Pawnbroker | 169 William Street, Perth | 1897 | Witton's Directory |
| Krug | E. E. | Pawn Broker | Packenham Street, Fremantle | 1897 | Witton's Directory |
| Kruger | G. | Tobacconist | Geraldton | 1897 | Witton's Directory |
| Kruger | Wm. | Tobacconist | Roebourne | 1897 | Witton's Directory |
| Kueley | - | | Stone Street, Perth | 1897 | Witton's Directory |
| Kulzer | A. | Laborer | Karridale | 1897 | Witton's Directory |
| Kulzer | E. | Laborer | Karridale | 1897 | Witton's Directory |
| Kumane | J. | Police Constable | York | 1887 | WA Almanack |
| Kumaro | T. O. | Storekeeper | Cossack | 1897 | Witton's Directory |
| Kunningas | M. | Miner | Nannine | 1897 | Witton's Directory |
| Kurners | W. | Miner | Nannine | 1897 | Witton's Directory |
| Kurth | E. | Storekeeper | Goongarrie | 1897 | Witton's Directory |
| Kurtzyman | E. R. | | Alma Street, Beaconsfield | 1897 | Witton's Directory |
| Kuwatsch | A. | Labourer | York | 1879 | WA Almanack |
| Kuwertsch | A. | Stonemason | York | 1886 | WA Almanack |
| Kuwertsch | August | Stonemason | York | 1879 | Herald Almanack |
| Kuwertsch | August | Stonemason | York | 1880 | Herald Almanack |
| Kuwertsch | August. | Stone Mason | York | 1881 | Herald Almanack |
| Kuwertsch | Augusta | Stonemason | York | 1882 | Herald Almanack |
| Kuwertsch | Augusta | Stonemason | York | 1883 | Herald Almanack |
| Kwong, Ah, & Co. | | Drapers | Hutt Street, Perth | 1897 | Witton's Directory |
| Kühn | W. J. | | Trevarton Street, Perth | 1897 | Witton's Directory |
| Kyle | Mrs. | | Bannister Street, Fremantle | 1897 | Witton's Directory |
| Kyle | T. | Haircutter &c. | Perth | 1882 | Herald Almanack |
| Kyle | T. | Haircutter. &c | Perth | 1883 | Herald Almanack |
| Kyle & Norman | | Civil & Mining Engineers, Excelsior Water Supply Co | Sylvester Street, Coolgardie | 1897 | Witton's Directory |
| Kyneton | F. | Miner | Nannine | 1897 | Witton's Directory |
| Kyte | Rev. T. | Congregational Minister | Perth | 1887 | WA Almanack |
| Kyte | Rev. T. | Congregational Minister | Perth | 1888 | WA Almanack |