Sadr City (Arabic: مدينة الصدر‎) is a suburb district of the city of Baghdad, Iraq. It was built in 1959 by Prime Minister Abdul Karim Qassim and later unofficially renamed Sadr City after deceased Shia leader Mohammad Mohammad Sadeq al-Sadr. Sadr City is one of nine administrative districts in Baghdad. A public housing project neglected by Saddam Hussein, Sadr City holds more than 1 million Shiite residents, many of them poor.

Sadr City was built in Iraq in 1959 by Prime Minister Abdul Karim Qassim in response to grave housing shortages in Baghdad. At the time named Revolution City (مدينة ألثورة), it provided housing for Baghdad's urban poor, many of whom had come from the countryside and who had until then lived in appalling conditions. It quickly became a stronghold of the Iraqi Communist Party, and resistance to the Baathist-led coup of 1963 was strong there.

After the Baath Party Coup, the district was renamed Saddam City, in honor of Saddam Hussein, the Baath Party leader. After the foreign occupation of Baghdad in April 2003, the district was unofficially renamed Sadr City after deceased shiite leader Mohammad Mohammad Sadeq al-Sadr.