Tadjidine Ben Said Massounde (Arabic: تاج الدين بن سعيد مسوندي, 1933 in Anjouan – February 29, 2004) was a Comorian politician.
Massounde served as Prime Minister from 27 March 1996 to 27 December 1996. After the death of President Mohamed Taki Abdoulkarim on 6 November 1998, he became interim President. His government was overthrown in a 30 April 1999 military coup led by Colonel Azali Assoumani.