| Nairn Bros. Ltd. | - | Byro Station, Yalgoo | JN6 | 1912 |
| Naisbitt | C. F. & B. J. | 10691-2, Lake Grace | J1N and 19A, 36B | 1962 |
| Naisbitt | Chas. | Lot 18959/74, Jinarnin, via Wagin | 8CN | 1924 |
| Naisbitt | Edward | Part of Williams Loc. 9735, Dunelm Tarin Rock via Dumbleyung | 1EN | 1926 |
| Naisbitt | J. W. | Dunelm, Tarin Rock | 1EN and 58F, 44C | 1962 |
| Naisbitt | James C. | Strathmore, Tarin Rock via Dumbleyung | J1N | 1926 |
| Naismith | A. A. | Pyramid Station, Port Hedland | ON1 and 118E, 44C | 1962 |
| Nak | Mahomet | Port Hedland, Pilbarra | N1M | 1912 |
| Nak | Mahomet | Port Hedland | N1M | 1924 |
| Nalder | A. J. | Bonny Vale, Wagin East | BV7 | 1912 |
| Nalder | A. J. | Bonny Vale, Wagin, East | BV7 | 1924 |
| Nalder | A. W. | Koolinda, North Dinninup | AN7 and 39D, 117E | 1962 |
| Nalder | C. D. | Glenalvin, Wagin | 0CN and 13D, 110E | 1962 |
| Nalder | F. L. | Bonnie Doon | NB2 and 37C, 21E | 1962 |
| Nalder | J. | Trelawney, Wagin | 2ZJ and 107A, 46B | 1962 |
| Nalder & Sons | A. J. | Bonnie Vale, Wagin | BV7 and 32A, 34B | 1962 |
| Nalder & Vagg | - | Wendouree, Wagin | 1ZV | 1962 |
| Nalder Bros. | - | Bonnie Doon, East Wagin | NB2 | 1924 |
| Nallan | - | Nallan Station, 394/484, Cue | PM5 and 5B, 14A | 1962 |
| Nallder Bros. | - | Bonnie Doon, East Wagin | NB2 | 1912 |
| Nalli & Co. | L. | Roma and Poonawariup, Broomehill | 9XN and 7B, 104A | 1962 |
| Nallie & Son | A. | Roma Farm, Broomehill | 9XN | 1924 |
| Nambi Station Pty. Ltd. | - | Nambi Station, Leonora | XD7 and 17A, 17B | 1962 |
| Nancarrow | Albert | Roselyne, South Kumminin | 1NQ | 1924 |
| Nancarrow | B. K. | Sunnyside, Pinjarra | 4ZB and 84A, 49B | 1962 |
| Nancarrow | Geo. | Loc. Nos.18884, 18240, North Kellerberrin | 9GN | 1924 |
| Nancarrow | H. A. | Loc. 1228, Coolup | 4ZH | 1962 |
| Nancarrow | H. W. V. | Loc. 215, 233, Pinjarra | V7N and 14C, 110E | 1962 |
| Nancarrow | J. | Lot 76, Coolup | NV6 | 1924 |
| Nancarrow | J. | Block 83-4-5, Coolup | N8N and 21C, 67E | 1962 |
| Nancarrow | J. H. | Murray Loc. Pt. 17 and Pt. 1 of 17 and all 1440, Pinjarra | J2H and 47B, 20E | 1962 |
| Nancarrow | John | Rosewarn Farm, Pinjarra | N8N | 1912 |
| Nancarrow | John | Rosewarn farm, Pinjarra | N8N | 1924 |
| Nancarrow | K. E. J. | Coolup A.A. 215, Pinjarra | 1KN and 33B, 6E | 1962 |
| Nancarrow | T. O. | 2A, Pinjarra | TO1 and 11C, 50E | 1962 |
| Nancarrow | William T. | Yanmah (Group Set), Yanmah, via Manjimup | Q6N | 1925 |
| Nanga Pastoral Co. Ltd. | - | Nanga, Shark Bay | N1P | 1926 |
| Nangan | Edward | Commonage, Laverton | E7N | 1924 |
| Nankivell & Sons | P. G. & P. M. | Lake View, Wubin | 8ZW and 31D, 23E | 1962 |
| Nankwell, Hasle & Grace | - | Benara Farm, Pithara | U4N | 1924 |
| Nanull | P. E C. | Oak Farm, Beverley | 8EM | 1912 |
| Nanull | P. E. C. | Oak Farm, Beverley | 8EM | 1924 |
| Napeachure Grazing Co. | - | Golden Valley, Pinjarra | 8DW and 20C, 104A | 1962 |
| Napier | A. | Williams 9764, Nyabing | AN2 and 26A, 49B | 1962 |
| Napier | J. A. | North Perth | 6NA | 1924 |
| Napier | J. A. | Wanneroo No. 20, North Perth | 6NA | 1962 |
| Napier | J. G. | Lilydale Farm, Nungarin via Doodlakine | NN4 | 1912 |
| Napier | J. G. | Lilydale Farm, Nungarin, via Doodlakine | NN4 | 1924 |
| Napier | N. H. | Trefle Noir, Armadale | 0YG and 17B, 40A | 1962 |
| Napier | W. R. | Nelson 7997-8, Cundinup, Via Nannup | N7N and 104E, 7C | 1962 |
