"We have registered the names of 14,025 people who have gone missing since 2003," Arkan Kamel, an official at the human rights ministry, told a news conference in Baghdad.
"Until now, we have only found seven from the registered names at the morgues," he added.
"Missing persons are those who disappeared during war operations, explosions and terrorism attacks," said Farouk al-Araji, who heads the military section at the prime minister's office.
"The committee will collect information about the missing to answer all questions about them," he told reporters.
Among those whose fate remains unknown is Salah Jali, an administrator with Agence France-Presse who has been missing since April 2006.
The committee comprises members of the Judicial Council and the ministries of justice, interior, human rights, national security and intelligence.
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