Walter Jerome Schloss (August 28, 1916 – February 19, 2012) was an American investor, fund manager, and philanthropist.

Schloss took investment courses taught by Graham at the New York Stock Exchange Institute while being employed at Loeb, Rhoades & Co. One of his classmates was Gus Levy, the future chairman of Goldman Sachs.

In 1955, Schloss left Graham's company and started his own investment firm, eventually managing money for 92 investors.

By maintaining a manageable asset size, Schloss averaged a 15.3% compound return over the course of four and a half decades, versus 10% for the S&P 500.

Warren Buffett named him as one of The Superinvestors of Graham-and-Doddsville, who disproved the academic position that the market is efficient, and that beating the S&P 500 was "pure chance".