The Asian Australasian Society of Neurological Surgeons (AASNS) is the continental society for neurosurgeons and neurosurgical societies in Asia and Australasia.

It is the largest continental society of neurological surgeons in the world, with more than 28 countries in its membership, with more than 14,000 neurosurgeons representing 40% of the world’s neurosurgeons looking after 60% of the world’s population.

The Society organises the Asian Australasian Congress of Neurological Surgeons every four years. The first Congress was held in Canberra, Australia in 1967 with Sir Douglas Miller as its first president. The most recent Congress was held in Nagoya in November 2007 under the presidency of Professor Tetsuo Kanno. The 13th Asian Australasian Congress of Neurological Surgeons will be held in Taiwan in 2011.