Saudi Arabia became the first Arab nation Sunday to take over the G20 presidency, taking over from Japan.
The G20 presidency will see it host world leaders for a global summit in its capital next November 21-22.
"The Kingdom of Saudi Arabia assumes the G20 Presidency today, leading up to the summit in Riyadh" in 2020, the official Saudi Press Agency said.
"The Saudi G20 presidency is committed to continuing the work from Osaka and promoting multilateral consensus."
Crown Prince Mohammed bin Salman hailed it as a "unique opportunity" to shape international consensus, SPA added.
Saudi Arabia will host more than 100 events and conferences in the run-up to the summit, including ministerial meetings, the agency said.