Mari bin Amude Alkatiri is a Timorese politician. He was Prime Minister of East Timor from May 2002 until his resignation on 26 June 2006 following weeks of political unrest in the country, and again from September 2017 until May 2018. He is the Secretary-General of the Fretilin party and was the former President of the Special Administrative Region of Oecusse.

The prime minister of East Timor, officially the Prime Minister of the Democratic Republic of Timor Leste, is the head of government in East Timor.