After deliberations over two days, the 12-member jury announced it had found Trump guilty on all 34 counts he faced. Unanimity was required for any verdict.
Trump watched the jurors dispassionately as they were polled to confirm the guilty verdict.
Justice Juan Merchan set sentencing for July 11, days before the July 15 start of the Republican National Convention expected to formally nominate Trump for president.
Merchan thanked the jurors for their service. “Nobody can make you do anything you don’t want to do. The choice is yours,” Merchan said.
The verdict plunges the United States into unexplored territory ahead of the Nov. 5 presidential election, when Donald Trump, the Republican candidate, will try to win the White House back from Democratic President Joe Biden.
Trump, 77, has denied wrongdoing and was expected to appeal.
“This was a disgrace. This was a rigged trial by a conflicted judge who is corrupt,” Trump told reporters afterwards.
“The real verdict is going to be Nov. 5 by the people,” Trump said, adding: “I am a very innocent man.”