Huda Salih Mahdi Ammash (born Baghdad 1953) is an American-educated Iraqi scientist, dubbed Mrs. Anthrax by the U.S. government. Ammash was number 53 on the Pentagon's list of the 55 most wanted, the five of hearts in the deck of Most wanted Iraqi playing cards, and the only woman to be featured.

U.S. officials allege that Ammash, who earned a Ph.D. in microbiology from the University of Missouri-Columbia, and who was appointed to the Revolutionary Command Council in May 2001, helped to rebuild Iraq's biological weapons program in the mid-1990s after the Gulf War. American officials say she was one of a new generation of leaders given leading posts within the Baath party by Saddam. In one of several videos that Saddam released during the war, Ammash was the only woman among about a half-dozen men seated around a table. The videos were broadcast on Iraqi TV as invading forces drew closer to Baghdad: it is not known when the meeting took place or what the significance was of her appearance on camera.

Ammash served as president of Iraqi's microbiology society and as dean at the University of Baghdad. U.S. officials said she was trained by Nassir al-Hindawi, described by United Nations inspectors as the "father of Iraq's biological weapons program".

She received her undergraduate degree from the University of Baghdad, followed by a Masters in microbiology from Texas Woman's University in Denton, Texas. She spent four years at the University of Missouri-Columbia in pursuit of her doctorate in microbiology, which she received in December 1983. Her thesis focused on the effects of radiation, paraquat, and Adriamycin, a chemotherapy drug, on bacteria and mammals.

She conducted research into illnesses that may have been caused by depleted uranium from shells used in the 1991 Gulf War, [1] and had published several papers on the health effects of the war and the subsequent sanctions. [2]

Ammash's father was a high-level Baath Party member in Iraq, who became defense minister in 1963, deputy prime minister in 1968, and an ambassador in 1977. He is believed to have been ordered killed by Saddam Hussein.

Ammash surrendered to coalition forces on May 9, 2003 and is one of two Iraqi women known to be in U.S. custody as of April 2005. The other is the British-educated Dr. Rihab Taha, who led Iraq's biological weapons program until 1995. Neither woman has been charged with any offense.