The 2021 South American U-17 Championship was originally going be the 19th edition of the South American U-17 Championship (Spanish: CONMEBOL Sudamericano Sub-17), the biennial international youth football championship organised by CONMEBOL for the men's under-17 national teams of South America. It was scheduled to be held in Ecuador between 31 March – 25 April 2021, before its suspension and subsequent cancellation due to the COVID-19 pandemic. Argentina are the defending champions.