Hassan Muhammad Salih bin Attash (Arabic: حسن محمد علي بن عطاش) is a citizen of Saudi Arabia who was held by the United States in the Guantanamo Bay detention camp in Cuba.

[3] Joint Task Force Guantanamo counter-terrorism analysts estimate that bin Attash was born in 1985, in Jeddah, Saudi Arabia.

[11] Human Rights group Reprieve reports that flight records show two captives named Al-Sharqawi and Hassan bin Attash were flown from Kabul in September 2002.

Flight records showed that the plane originally departed from Diego Garcia, stopped in Morocco, Portugal, then Kabul before landing in Guantánamo Bay.

[12] Originally the Bush Presidency asserted that captives apprehended in the "war on terror" were not covered by the Geneva Conventions, and could be held indefinitely, without charge, and without an open and transparent review of the justifications for their detention.

[13][16] Scholars at the Brookings Institution, led by Benjamin Wittes, listed the captives still held in Guantanamo in December 2008, according to whether their detention was justified by certain common allegations:[17] A writ of habeas corpus was filed on behalf of Bin Attash.