Gharibabadi, who is also deputy Judiciary chief for international affairs, leads a high-ranking Iranian delegation in Geneva.
The Iranian official is planned to address the UN session and hold separate meetings with the UN officials as well as envoys of the Non-Aligned Movement (NAM) member states and Islamic countries.
On the sidelines of the session, an exhibition will be held to showcase destructive impacts of unilateral sanctions on the Iranian people.
The 51st session of the Human Rights Council is slated for September 12 for four weeks.