The former Inter and Manchester City coach has become the Russian club's second Italian coach after he was drafted in to replace Mircea Lucescu
Zenit have confirmed the appointment of Roberto Mancini as their new head coach on a two-year deal.
Mircea Lucescu departed the club last month after he could only lead them to third place in the Russian Premier League and elimination from the last 32 of the Europa League.
And Zenit have now turned to Mancini, a league winner in Italy with Inter and England with Manchester City.
Since he was sacked by City in 2013, Mancini has led Galatasaray, winning the Turkish Cup, before returning to Inter in 2014.