Ilgar Anzor oglu Mirzayev was born on 8 May 1973, in Gardabani, Georgian SSR, then the Soviet Union. He entered the secondary school of Gardabani in 1980 and graduated in 1990. Mirzayev was admitted to the Azerbaijan Higher Military Academy in 1991 and graduated in 1995.



In 1995, Ilgar Mirzayev began his service with the rank of lieutenant. From 2003 to 2005, he improved his education at the War College of the Azerbaijani Armed Forces. Mirzayev had served in Baku, Ganja, Nakhchivan, Beylagan, Goranboy, and Shamkir in different years. He served on the frontline during the April 2016 clashes. On 23 February 2019, he was appointed Chief of Artillery of the 3rd Army Corps.

Mirzayev took part in the clashes on the Armenian–Azerbaijani border in July 2020. He was killed on 14 July 2020, in the territory of Tovuz District. Mirzayev was buried on July 15 in the Second Alley of Honor in Baku, alongside Polad Hashimov. Azerbaijan's minister of defense, Zakir Hasanov, chief of general staff, Najmaddin Sadigov, and, the Mayor of Baku, Eldar Azizov, also attended the funeral.



Ilgar Mirzayev was married. He had 1 son and 1 daughter.

Mirzayev was awarded the 2nd and 3rd-degree For service to the Fatherland Orders in 2016, by the decree of the President of Azerbaijan, Ilham Aliyev.
Mirzayev was awarded the Azerbaijani Army 100th anniversary medal in 2018, by the decree of the President Aliyev.
Mirzayev was promoted to the rank of colonel in 2018, by the decree of the President Aliyev.
Mirzayev was awarded the title of National Hero of Azerbaijan on 9 December 2020, by the decree of the President Aliyev.