Barnet Joseph Segal (January 29, 1898– September 6, 1985) was an American businessman and early investor and banker in Carmel-by-the-Sea, California. He helped start several financial institutions, including the Bank of Carmel and the Carmel Savings and Loan Association. He was "historically Carmel's most significant financier." Segal setup the Barnet J. Segal Charitable Trust to distribute his estate for the benefit of Monterey County, California.