Abu Musab may refer to:
Abu Musab al-Barnawi, Nigerian Islamic militant Ahmad Fadeel al-Nazal al-Khalayleh, also known as Abu Musab al-Zarqawi Mustafa Setmariam Nasar, also known as Abu Musab al-Suri Mohamedou Ould Salahi, Mauritanian former detainee at the Guantánamo Bay detention camp