Hassan Abdi Dhuhulow (1990 – 22 September 2013) was a Norwegian-Somalian Islamist terrorist and Al-Shabaab-member who was one of four perpetrators of the 2013 Westgate shopping mall attack in Nairobi, Kenya that killed 71 people.

Although well-liked, he was described by himself and by others as being lonely, and he became very religious as a practicing Muslim who prayed five times a day and started bringing a prayer rug with him during upper secondary school.

[10] He was a prolific user on web forums, at times displaying clear jihadist sympathies, including on a site hosted by the Islamic Association with 2,500 comments from 2006 to 2008.

[10][12][13] Dhuhulow reportedly attended an Al-Shabaab training camp in El Buur, and was involved in operations in Mogadishu and Kismayo,[5] eventually becoming part of a 'martyrdom brigade'.

[22][23][24] Researcher Stig Jarle Hansen has voiced similar concerns, holding that the issue of Norwegian Al-Shabaab-fighters is taken too lightly in Norway (the number of fighters is the same as the United Kingdom despite many more Somalis living there).