The Timorese Social Democratic Association (Portuguese: Associação Social-Democrata Timorense; abbreviated ASDT) was a political party in East Timor.

Both the original ASDT of the 1970s (which became Fretilin) and the current party of the same name are founded by the late ex-Timorese President Francisco Xavier do Amaral.

[6] In the June 2007 parliamentary election, ASDT which was then led by Secretary General Gil Alves formed an alliance with the Social Democratic Party (PSD) which he stated that the coalition aims to establish a good collaboration, creating a system based on history, culture, experience and ability to govern.

The program of the two related parties is based on a clear strategy that will bring progress in all sectors.

In the end the decision of the Court of Appeals of Timor-Leste in favor of João Correia's version of ASDT.