The central criminal court issued the sentences "after it was proven they belong to the Daesh (IS) terrorist group and they confessed to marrying Daesh elements or providing members of the group with logistical aid or helping them carry out terrorist attacks", said Judge Abdul-Sattar al-Birqdar.
Thousands of foreigners have fought for the Islamic State group in Iraq and Syria since 2014. While some women were brought to Iraq and Syria against their will, many traveled voluntarily to join militants in their self-declared "caliphate".
Iraq's Arabic-language al-Mashriq newspaper has reported that more than 1,500 women and children from the families of ISIS militants are now being held in the country, and that the Baghdad government is coordinating with their respective countries to decide their fate.
A spokesman made the announcement Sunday as Iraq conducts trials for hundreds of foreign women who have been detained.
About 1,700 women and children linked to an "Islamic state" surrendered or were captured in Iraq.
Last week another Turkish national Isis widow was sentenced to death by hanging and 11 others were jailed for life for their part in "acts of terrorism" in the country.
Just last month, a German citizen was sentenced to death in Iraq for providing Daesh with logistics aid.
Experts estimate that 20,000 people are being held in jail in Iraq for alleged membership of ISIS.
Human Rights Watch has raised concerns about the judicial process and branded the trials unfair.
Human Rights Watch has criticised the courts for handing down death sentences for non-violent crimes, and claims that numerous women were tricked or coerced into joining the terrorist group.
In December, the Iraqi authorities declared a full victory over the group, which captured almost one-third of the country's territory in 2014. It also argues that in cases where a suspect is claimed to be a Daesh member "without evidence of any other serious crime, authorities should consider alternatives to criminal prosecution".