Leonel Ferroni (born 29 January 1996) is an Argentine professional footballer who plays as a left-back for Spanish club Unión Adarve.

[1] Ferroni was moved into the first-team of Newell's Old Boys, who signed him from Malvinas Argentinas in 2002, during the 2017–18 Argentine Primera División campaign, making his professional debut under manager Juan Manuel Llop during a 2–1 victory over Chacarita Juniors on 29 October 2017.

[1][5][6] In July 2019, Ferroni was loaned to newly promoted Primera División team Central Córdoba.

[1] His bow for the club arrived on 21 August in the Copa Argentina versus All Boys, though his league debut wouldn't come until November in a victory over Patronato.

[1] Ferroni wasn't taken into account by Central Córdoba in early January, with his loan deal eventually being terminated by the start of February.