Du'a Khalil Aswad was a 17-year-old Iraqi Yazidi girl who was stoned to death in Bashiqa, Nineveh, northern Iraq, in early April 2007, the victim of an honor killing. She is believed to have been killed around April 7, 2007, but the incident did not come to light until a video of the stoning, apparently recorded with several cell phones, appeared on the Internet. The rumor that the stoning was related to her alleged conversion to Islam led to reprisals against Yazidis by Sunnis, including the 2007 Mosul massacre.

Some reports claim that Aswad was killed for converting to Islam to marry an Iraqi Sunni Muslim boy. Other sources indicate, instead, that Aswad was killed as punishment for being absent from her home one night.

According to a journalist who interviewed Yazidi sources on the spot:

After Du'a's death, the international media widely repeated the claim made on various Islamic extremist websites that she had been killed because she had converted to Islam, but local reports do not match. Some say she had run away with her Muslim boyfriend and they were stopped at a checkpoint outside Mosul; others say her father and uncle had seen her talking to the boy in public and, fearing her family's reaction, had sought protection at the police station. Be that as it may, the police handed Du'a over to the custody of a local Yazidi sheikh.

Some news agencies reported that Aswad was being sheltered by a Yazidi tribal leader in Bashika in fear for her life until her family convinced her that she had been pardoned and could return home. Other reports indicate that she was instead given asylum by a local Muslim sheikh. It is unknown whether the same family members who convinced her to return home were responsible for her death. It is unclear from the video whether she was ambushed on her way home or whether the mob broke into her home and dragged her into the street. Estimates of the number of attackers range from hundreds to a thousand or two thousand men.

During the stoning, which lasted about 30 minutes, Aswad can be seen on video trying to sit up and calling for help as the mob taunts her and repeatedly throws large chunks of rock or cement at her head. After her death in the town square, Aswad's body was tied behind a car and dragged through the streets. She was buried with the remains of a dog, to disrespect her.

Her body was "exhumed and sent to the Mosul Medico-Legal Institute for tests to see if she had died a virgin."

Aswad's murder is believed to have triggered or served as a pretext for a reprisal attack in Mosul on April 22, in which 23 Yazidis were killed and claimed by the Islamic State of Iraq. Another retaliatory attack, claimed by Jamaat Ansar al Sunna, also took place on the same day, with a suicide car bomb targeting the town of Tel Isqof, killing 25 Yazidis and Assyrian Christians.

The devastating terrorist attacks on the Yazidi towns of Kahtaniya and Jazeera in August 2007, perpetrated by Sunni Muslims and killing at least 800 people and injuring 1,500 others, were allegedly claimed by the killers as a response to the stoning.