Beriah Green Jr. (March 24, 1795 – May 4, 1874) was an American reformer, abolitionist, temperance advocate, college professor, minister, and head of the Oneida Institute. He was "consumed totally by his abolitionist views". He has been described as "cantankerous". Former student Alexander Crummell described him as a "bluff, kind-hearted man," a "master-thinker".