Officers went to the 2500 block of Berryessa Road at around 1:10 a.m. to investigate reports of a fight at a restaurant, San Jose police spokesman Jermaine Thomas said.
Police found a man who had been stabbed, Thomas said. The victim was taken to a local hospital where he was pronounced dead.
A preliminary investigation revealed that a fight inside the restaurant led to the stabbing.
No suspects have been arrested.