Fiona Ma is an American politician and accountant. She has served as the 34th state treasurer of California since January 7, 2019. In this role, the office of California State Treasurer holds broad responsibilities and authority in the areas of investment and finance.

The Treasurer is elected statewide every four years and acts as the State's lead asset manager, banker, and financier. Ma also serves as chairperson or a member of numerous State authorities, boards, and commissions.