Events in the year 2003 in the Islamic Republic of Iran.

Incumbents

• Supreme Leader Ali Khamenei
• President Mohammad Khatami

Events

• December 26 - A massive earthquake devastates southeastern Iran. 26,271 people were killed in the city of Bam.

Notable births

Full date unknown

• Yasha Asley

Notable deaths

• July 8 - Ladan and Laleh Bijani, Iranian conjoined twins
• September 6 - Mohammad Oraz, Iranian mountain climber, Mount Everest Summiter, died while climbing Gasherbrum I.