| Navigators | Australia | Images of navigators on stamps. |
| Navy | Australia | Sinking of H.M.A.S. Sydney 1941. |
| Ned Kelly | Colonial | See references elsewhere. |
| New Guinea, British | New South Wales/ Queensland |
A delivery envelope sent by Lt Governor Le Hunte by ship from Samarai, NG to Sydney in 1900. |
| News from England | South Australia | The great horse race: Glenelg to Adelaide. See also the 10 February 1893 recounting in The Advertiser. |
| Newspapers | Victoria | Special telegraph lines allocated to newspapers. |
| New Zealand | First telegraph lines. | |
| First cable to Australia (New South Wales). | ||
| Australian Colonies (1897) |
Money order transactions between the Australian Colonies and New Zealand. | |
| Non-delivery advice | Australia | Notices for non- delivery of a ship telegram. |