The winners of the Nations League quarterfinal between Italy and Germany will host the last four of the tournament from 4-8 June, Uefa announced on Monday.
Juventus and Torino's grounds will be used if Italy win the two-legged quarterfinal in March, while Munich and Stuttgart will stage the semifinals and final if Germany progress.
The Italian football federation said Juventus' Allianz Stadium would host both semifinals and the final, with the third place playoff to be played at Torino's stadium.
Italy take on Germany in the first leg of their tie on 20 March in Milan. The return is scheduled for Dortmund three days later.
The other quarterfinals pit France against Croatia, with European champions Spain meeting the Netherlands and Portugal playing Denmark.
European football's governing body also announced that next year's Uefa Super Cup is due to take place on 13 August in Udine, Italy.