Juan Ignacio Barinaga (born 10 October 2000) is an Argentine professional footballer who plays as a right-back for Argentine Primera División club Boca Juniors. Barinaga started his career with Newell's Old Boys, before heading to Agrupación Deportiva Infantil Unión Rosario (also known for its acronym "ADIUR") at the age of thirteen. Following a 2016 trial, Barinaga joined Belgrano in early 2017. He was moved into Alfredo Berti's senior set-up in mid-2019, originally as an unused substitute for a Copa Argentina loss to Real Pilar and a Primera B Nacional win over Barracas Central in July and August respectively. Barinaga's professional debut would arrive on 6 September during a 1–1 draw on the road against Deportivo Morón, after he was substituted on in place of Sebastián Luna. He scored his first goal on 5 December versus Independiente Rivadavia.