Lionel Leong or Leong Vai Tac (Chinese: ???; born June 1962), local Chinese, is a political figure of the Macao Special Administrative Region of the People's Republic of China.
Leong was inaugurated as the 4th Secretary of Economy and Finance of Macao Special Administrative Region (MSAR) since 20 December 2014.
He was also one of the MSAR delegates to the 11th and 12th National People's Congress; member of the 9th Chinese People's Political Consultative Conference Hebei Provincial Committee; member of the Council for the Election of Deputies of MSAR to the 9th – 13th National People's Congress; member of China, Asia Pacific Group of the Trilateral Commission; member of the Selection Committee for the first MSAR Government; member of the Election Committee of MSAR Chief Executive in 2004, 2009 and 2014; member of the 2nd and 3rd Executive Council of the MSAR; member of the University Assembly of University of Macau; member of the Board of Trustees of Macao Foundation; Vice Chairman of the Macao Advisory Council on the Environment; member of the Evaluation Committee of Macao Science and Technology Awards; President of the Digital & Information Technology Committee of Macau Productivity and Technology Transfer Center; member of the Board of Trustees of the Macao Cultural Industries Fund; President of Macau Development Strategy Research Centre; Chairman of the Advisory Board of Macau Economic Association; Director General of Charity Fund From the Readers of Macao Daily News; President of Pan Mac Junior Chamber and Vice President of the Kiang Wu Hospital Charitable Association, etc.Leong's nickname is "?? (God of Wealth), "due to his position as the Secretary of Economy and Finance.
After the catastrophic typhoon "Hato" on 23 August 2017, the public caught sights of him cleaning up collapsed trees on the street and therefore the media also nicknamed him as "????(Move Trees Uncle)".