The jury found Eric Hunt guilty of misdemeanor false imprisonment with a hate crime allegation, battery and elder abuse for yanking the 79-year-old Wiesel from a hotel elevator in February 2007, said defense lawyer John Runfola.
Runfola said the jury found Hunt not guilty on felony charges of attempted kidnapping, false imprisonment and stalking. Wiesel was not hurt in the incident.
Wiesel, well known for his memoir on the Holocaust, was 15 years old when his Jewish family was deported by the Nazis to the Auschwitz concentration camp. He lost his parents and younger sister in the Holocaust.
Hunt had pleaded not guilty by reason of insanity after being extradited to San Francisco from a New Jersey mental institution, Runfola said.
"He's been given medication and now he's restored," Runfola said, noting Hunt has a sentencing hearing August 13 and faces up to three years in prison.
Wiesel was awarded the Nobel Peace Prize in 1986 for writing and speaking out against violence, repression and racism.