Cambodia Democracy Act of 2019 This bill directs the President to impose sanctions on individuals responsible for acts to undermine democracy in Cambodia, including acts that constituted serious human rights violations. The sanctions shall be directed at senior Cambodian government, military, or security forces officials responsible for such actions, as well as entities controlled or owned by such individuals. The sanctions shall include blocking assets and restricting the entry of sanctioned individuals into the United States, and shall not apply to the importation of goods. The President may waive the sanctions with respect to a person or entity if it is in the national interest of the United States. The President may suspend the sanctions if Cambodia makes meaningful progress toward ending government efforts to undermine democracy or committing human rights violations.