She became a member of the World Azerbaijanis Coordination Board according to the decision made at the 4th Congress of the World Azerbaijanis in 2016.
She became the head of Azerbaijan-France working group on inter-parliamentary relations according to the decision of Milli Majlis on March 4, 2016.
Mehriban Aliyeva paid a visit to Vatican on February 23, 2016 and was at the Pio-Clementino Museum to view samples of art recovered with the support of the Heydar Aliyev Foundation chaired by her. She also reviewed closets being restored with the support of the Heydar Aliyev Foundation at the Apostolic Library and had a meeting with Director of Vatican's Museum Antonio Paolucci, Vatican's state governor, cardinal Giuseppe Bertello, President of Vatican's Pontifical Council for Culture Gianfranco Ravasi. Mrs. Aliyeva and Gianfranco Ravasi signed an agreement on recovering Saint Sebastian tombs. Moreover, she addressed the opening ceremony of the Saints Marcellinus and Peter catacombs restored by the initiative of the Heydar Aliyev Foundation. The opening ceremony of Saint Sebastian tombs was conducted on September 26, 2018 in the presence of Mehriban Aliyeva.
During her trip to Bulgaria, Aliyeva took part in the opening of “Trapezitsa” Architectural Museum Reserve organized with the support of Heydar Aliyev Foundation in the city of Veliko Tarnovo on September 22, 2016. In November 2019, she undertook her first official state visit to Russia, holding bilateral talks with President Vladimir Putin and Prime Minister Dmitry Medvedev. While at the presidential residence of Novo-Ogaryovo, she was awarded the Order of Friendship by President Putin. During the visit, she also laid a wreath at the Tomb of the Unknown Soldier.