Ilham Heydar oghlu Aliyev is an Azerbaijani politician who is the fourth and current president of Azerbaijan. The son and second child of former Azerbaijani president Heydar Aliyev, Aliyev became the country's president on 31 October 2003, after a two-month term as prime minister of Azerbaijan, through a presidential election defined by irregularities shortly before his father's death. He was reelected for a second term in 2008 and was allowed to run in elections indefinitely in 2013 and 2018 due to the 2009 constitutional referendum, which removed term limits for presidents. Throughout his electoral campaign, Aliyev was a member of the ruling New Azerbaijan Party, which he has headed since 2005.

The president of the Republic of Azerbaijan is the head of state of the Republic of Azerbaijan. The Constitution states that the president is the embodiment of executive power, commander-in-chief, "representative of Azerbaijan in home and foreign policies", and "shall have the right of immunity [from prosecution]." The president rules through his executive office, the Presidential Administration, consisting of a group of secretaries and departmental ministers. Additionally, there is a Cabinet of Ministers regarding economic and social policy and a Security Council regarding foreign, military, and judicial matters.