His Excellency Mahinda Buddhadasa Samarasinghe (Sinhala: මහින්ද සමරසිංහ), (born 30 January 1956) is a former MP and the current Ambassador of Sri Lanka to the United States of America, Mexico and High Commissioner to Trinidad and Tobago. He was formerly a member of Parliament under Gotabaya Rajapaksa's Government, and the Sri Lanka Podujana Peramuna chief organiser for the Panadura Electorate in the Kalutara District.