Khaled Ben Mustafah (born in 1972) was one of five French citizens arrested in Afghanistan in 2001. He was detained at Guantanamo for three years before being sent back to France for trial in 2004.

Although originally convicted in France in 2007, his trial was overturned on appeal and he was released in February 2009. On February 17, 2010, the Court of Cassation, a higher court, ordered a re-trial of Khaled Ben Mustafa and four other men. Lawyers for ex-inmates of the Guantanamo prison camp used documents released by WikiLeaks to argue for their acquittal in a French terrorism trial on January 20, 2011.

In this testimony for witnesstoguantanamo, he describes a typical day in Guantanamo circa 2004 in the lower security camps (eg Camp 4).