Margaret Leung Ko May-yee, SBS, JP (Chinese: 梁高美懿; born 1952 in Hong Kong) is a non-official member of the Executive Council of Hong Kong. She was previously the deputy chairman and managing director of Chong Hing Bank Limited and vice-chairman and chief executive officer of Hang Seng Bank Limited. And before that she was the group general manager and Global Co-head of commercial banking of HSBC.