A statement from the Lebanese premier said Salam discussed with Zarif "developments in Lebanon and the region."
Lebanon's ambassador to Germany Mustapha Adib-Abdul-Wahed and Iran's ambassador to Germany Ali Majdi also took part in the meeting.
Salam and Zarif are in Munich for a security conference that has drawn heads of states and ranking officials from across the world to debate solutions to regional conflicts, The Daily Star reported.