Amar Makhlulif alias Abu Doha () is an Algerian alleged to be member of the al-Qaeda and GSPC terrorist networks. He was arrested at London Heathrow Airport in February 2001 while attempting to travel to Jeddah, Saudi Arabia on a forged passport. On 3 July 2008 the British bench released him from prison, under several security measures including a 22-hour-per-day curfew. Although the British press was forced to identified him only as "U", the other data about "U" identifies him clearly as Abu Doha.