Jurors at London's Southwark crown court on Monday found 71-year-old Clifford guilty of eight counts of indecent assault relating to four females as young as 15 and now faces up to two years in jail.
He was acquitted on two other counts, while the jury was unable to reach a verdict on another one following an eight-week trial.
He is the first high-profile figure to be convicted under Operation Yewtree, the Scotland Yard probe set up to investigate allegations of sex offences following the Jimmy Savile scandal.
Clifford's victims came forward following the Savile revelations in 2012, with the claims against him dating from 1977 to 1984.
The victims included a dancer assaulted in a toilet and a model who said Clifford groped her when she went to his office for career advice in 1983 and he bragged that he could get her a part in a James Bond film.