But jurors ruled in favour of Mr Boyle after a week-long trial in London. They awarded him a total of £54,650 damages.
Mr Boyle, who said during the trial that he would given any damages to charity, did not comment to reporters after the verdict.
He had denied "punctuating" material with racist references or making "gratuitous" use of black people, during a trial in London. He told the High Court that characters he played might express racist views, but he did not.
Mr Boyle said he actively campaigned against racism and parodied racists - and claimed that the Daily Mirror had "misunderstood" the context of his use of language in jokes.
MGN lawyers said Mr Boyle was a "racist comedian" who gratuitously exploited negative stereotypes of black people for "cheap laughs".