The Thai Population Association (TPA) is an organization founded by a group of academics and specialists who are concerned with problems related to the size, quality and distribution of population in urban and rural areas.

The TPA was registered on November 5,1981, and draws its members from academic institution and governmental and non-governmental agencies working on the area of population and related fields. In addition to being a forum for these specialists, the TPA is a source of information dissemination and research for population issues, in order to encourage members' performance, as well as to make a contribution to relevant government policy.