A delegation from Russia's upper house of parliament will begin an official visit to Iran on November 13.
The group from Russia's Federation Council will be led by speaker Valentina Matviyenko.
The Russian lawmakers will meet with Iranian politicians, including parliament speaker Ali Larijani, during the two-day visit.
The two sides are slated to discuss expanding economic ties, regional cooperation, and ways to help implement bilateral agreements signed by Russian President Vladimir Putin and his Iranian counterpart Hassan Rohani during an August meeting in Baku.
Matviyenko said discussions will also be held on regional security issues and the fight against terrorism.
She added that regular high-level contacts between Iranian and Russian politicians reflect the "close nature of relations."
Iranian and Russian forces are allied with Syrian government troops against opposition fighters in the Syrian civil war.
Russia also supplies Iran with military hardware and defense systems and has aided Tehran in building nuclear-energy facilities.
