The 2019 South American U-17 Championship is an international association football tournament held in Peru from 21 March to 14 April 2019. The ten national teams involved in the tournament were required to register a squad of 23 players; only players in these squads are eligible to take part in the tournament. All registered players had to have been born on or after 1 January 2002. The age listed for each player is on 21 March 2019, the first day of the tournament. On 6 March 2019 CONMEBOL published the lists of ten teams.