Spaniard Julen Lopetegui is taking over as coach of FC Porto on a three-year contract.
The Portuguese club's president, Jorge Pinto da Costa, announced the appointment on Tuesday and did not provide financial details.
Lopetegui, aged 47, has in recent years been in charge of Spain's national youth teams. He led the under-19 and under-21 teams to European titles in 2012 and 2013, respectively.
Coach Paulo Fonseca left the defending Portuguese champion in March after a string of poor results, including Porto's first home league defeat in more than five years. B team coach Luis Castro temporarily took charge.
With one round to play, Porto lies third in the league, 16 points behind champion Benfica.
Porto was the Portuguese champion eight times in the last 10 years.
