Barzillai is a masculine given name. Notable people with the name include:
Barzillai, biblical figure Barzillai ben Baruch Jabez, Turkish Talmudist of the seventeenth and eighteenth centuries Barzillai J. Chambers (1817–1895), American surveyor, lawyer, and politician Barzillai Gannett (1764–1832), U.S. Representative from Massachusetts Barzillai Gray (1824–1918), American judge Barzillai Jones, Dean of Lismore Barzillai Lew (1743–1822), African-American soldier Barzillai Quaife (1798–1873), English-born editor
See also Barzilai (surname) Barzillai Weeks House