It is the latest sign of improved relations between the two regional rivals since the resumption of diplomatic ties in March.
The one-day visit “is focusing on bilateral ties, regional and international issues.”
Amir-Abdollahian will be accompanied by Iran’s new ambassador to Saudi Arabia, Alireza Enayati, to “officially start his mission.”
Shiite-dominated Iran and Sunni Muslim Saudi Arabia severed ties in 2016 after protests in Iran led to attacks on the Saudi Embassy in Tehran.
The protests were in response to Riyadh’s execution of Shiite cleric Nimr al-Nimr.
According to Iranian state media, military officials from Iran and Russia met in Moscow during a security conference on Wednesday.
lo/sms (AFP, dpa, Reuters)