The Chartered Society of Designers
http://www.hingenet.com.hk/csd.htm
The Chartered Society of Designers was founded in London in 1930 and granted Royal Charter status in 1976. CSD is the leading professional organisation for design with 8000 designers practicing product, interior, graphic and fashion design worldwide in addition to design management and design education.
Hong Kong - 418

The Design Institute Of Australia [DIA]
http://www.dia.org.au
Only multi-disciplinary organisation of designers within Australia. Through its international affiliations, the Institute links its members with designers in over 40 countries.
Australia - 1182

The Designers Institute of New Zealand 
http://www.dinz.org.nz
Our main objective is:
To promote the world of design, as it is today, when more and more industries are relying on designers and their original work in order to make an impact for their particular brand or product.
New Zealand - 1799

Thailand Interior Designer's Association 
Thailand -