Aus-moN (an Australianised version of N scale Free-mo: - Free-moN) is a free form N scale modular railway system that specifies standards for benchwork, track and digital control. Aus-moN attempts to raise the bar for N scale modular railways in Australia by promoting prototypical appearance and operational characteristics.

Aus-moN is an aspect of the proposed unified Australian Free-moN system.

Following a forum discussion and agreement at the 2015 National N Scale Convention in Brisabne in April, a proposed unified version of Australian Free-moN is to be developed to enable a way forward. Information on progress will be advised when it comes to hand. (May 2015)