He told his radio audience that he was intending to sue British Home Secretary Jacqui Smith, who he described as the "lunatic ... Home Secretary of England".
"To link me up with skinheads who are killing people in Russia, to put me in league with Hamas murderers who kill people on buses is defamation," he said.
In an article posted on his website, he said he did not advocate violence but "traditional values".
He wrote: "What does that say about the government of England? It says more about them than it says about me."
Lawyers say it would be difficult for Mr Weiner to bring an action for defamation given that the list was issued with the authority of the British government.
They note that English law recognises that there are cases when there is a legitimate and public interest in information being made widely available, and that unless the government acted out of improper motives for placing him on the list, any libel claim is unlikely to get very far.
Public list
Mr Weiner has offended many in the US with his views on immigration, Islam and rape.
He also angered the parents of children with autism by saying most cases were "a brat who hasn't been told to cut the act out", the Associated Press reported.
The UK has been able to ban people who promote hatred, terrorist violence or serious criminal activity since 2005, but the list was only made public for the first time this week.
Hamas MP Yunis Al-Astal and Jewish extremist Mike Guzovsky are among the 16 named people by the Home Office as being excluded.
Also excluded are two leaders of a violent Russian skinhead gang, the ex-Ku Klux Klan Grand Wizard Stephen 'Don' Black and neo-Nazi Erich Gliebe.
The remaining six have not been named, as doing so would not be in the public interest, the government said.
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