Greater debt transparency is a vital step in the surveillance and development processes. It facilitates new, high-quality investment, reduces corruption, and brings accountability. But all too often public debt liabilities of low- and middle-income countries are hard to pin down. Many do not publish public debt data or publish incomplete data that understate the true level of liabilities. The opacity of domestic debt markets, increased use of central bank currency, and proliferation of borrowing by state-owned and private sector entities with various forms of government guarantee pose significant challenge to global surveillance of debt levels. This event will bring together a panel of experts from borrower and creditor countries, academia, and the World Bank to discuss efforts and concrete actions to support debt data transparency.