Omid Hajili (Persian: امید حاجیلی, born 24 September 1983) is an Iranian trumpet player, pop singer, musician, composer, and music arranger.

He started playing piano aged nine, and after he became eleven, he entered music school.

He received his school certification in 1998 and then continued his studies up to a bachelor's degree.

He has collaborated with many singers as composer and editor, including Alireza Assar, Sirvan Khosravi, Mohsen Chavoshi (Man tormenting-track), Ali Lohrasbi, Khashayar Etemadi, Hami, Nima Masiha, Shahkar Binesh Pajooh, Mohamad Zare, and Jamshid Azizkhani.

[2] His first album, Allegro, was a mixture of musical styles with a leaning to South America.