The BBC reports:
Abu Hamza, who preached at Finsbury Park mosque, London, was found guilty of 11 of the 15 charges he faced.
The cleric, 47, was also found guilty of having audio and video tapes intended to encourage racial hatred and having a document for terror purposes.
US authorities are seeking his extradition for terror-related matters.
He is wanted on charges of trying to set up a "terrorist training camp" in the state of Oregon.