is an Argentine professional football coach and former player who last coached Major League Soccer club Inter Miami.

Martino played mostly for Newell's Old Boys in his native Rosario. He holds the record of appearances with the team playing a total of 505 matches in all official competitions. He was also selected in a fan's poll as Newell's best player throughout the club's history.

Martino was chosen to replace Tito Vilanova as head coach of Barcelona at the start of the 2013–14 season, but announced his resignation on 17 May 2014, though his side finished runner-up in both the Copa del Rey and La Liga that season. In 2015, he led Argentina to the Copa América Final, only to be defeated by hosts Chile on penalties. His team also finished as runners-up in the Copa América Centenario, again losing to the defending champion Chile on penalties. On 5 July 2016, Martino resigned from the Argentina national team.

He was named the head coach of Atlanta United, a MLS expansion team that began play in 2017. Martino led the team to an MLS Cup victory in their second season and was named the MLS Coach of the Year before departing for the Mexico national team. He spent three years leading the side and left Mexico after being knocked out in the group stage in the 2022 FIFA World Cup.

In 2023, Martino returned to MLS, being appointed as head coach of Inter Miami, where he joined former Barcelona players Lionel Messi, Jordi Alba and Sergio Busquets, as well as former Atlanta United player Josef Martínez.