The Nurses' Associatin of Thailand (NAT) is a summit national philanthropic organization established on May 6, 1929 to promote the continued development of nursing profession and facilitate the advancement of nurses in their careers, morale and spiritual well being. 

The NAT has been esteemed under the Royal Patronage of Her Royal Highness the Princess Mother since 1957 as a center for facilitation of nursing research, education and practice.

The NAT enrolled to e a permanent membership of the International Council of Nurses since 1961 and has been worked concertedly and harmoniously with the Nursing Council ot Thailand, the peak official national body, since 1985 to present.