[2][3] Host team Argentina won their first South American U-15 title by defeating the defending champions Brazil 3–2 in the final.

Argentina was named as host of the tournament at the 67th Ordinary CONMEBOL Congress held on 26 April 2017 in Santiago, Chile.

[7] The draw was held on 13 October 2017, 17:30 ART (UTC−3), at the Salón Cruce de los Andes in the Civic Center of the Province of San Juan.

The remaining teams were seeded based on the results in the 2015 South American Under-15 Football Championship.

If tied on points, tiebreakers would be applied in the following order (Regulations Article 18.1):[2] All times are local, ART (UTC−3).