Baruch ben Neriah (Hebrew: ברוך בן נריה Bārūḵ ben Nêrîyāh "'Blessed', son of 'My Candle is Jah'") (c. 6th century BC) was the scribe, disciple, secretary, and devoted friend of the Biblical prophet Jeremiah. He is traditionally credited with authoring the deuterocanonical Book of Baruch.
According to Josephus, Baruch was a Jewish , a son of Neriah and brother of Seraiah ben Neriah, chamberlain of King Zedekiah of Judah.
Baruch became the scribe of the prophet Jeremiah and wrote down the first and second editions of his prophecies as they were dictated to him. Baruch remained true to the teachings and ideals of the great prophet, although like his master he was at times almost overwhelmed with despondency. While Jeremiah was in hiding to avoid the wrath of King Jehoakim, he commanded Baruch to read his prophecies of warning to the people gathered in the Temple in Jerusalem on a day of fasting. The task was both difficult and dangerous, but Baruch performed it without flinching and it was probably on this occasion that the prophet gave him the personal message.
Both Baruch and Jeremiah witnessed the Babylonian siege of Jerusalem of 587–586 BC. In the middle of the siege of Jerusalem, Jeremiah purchased estate in Anathoth on which the Babylonian armies had encamped (as a symbol of faith in the eventual restoration of Jerusalem), and, according to Josephus, Baruch continued to reside with him at Mizpah. Reportedly, Baruch had influence on Jeremiah; on his advice Jeremiah urged the Israelites to remain in Judah after the murder of Gedaliah.