Harry Emerson Lewis (March 16, 1880 – August 23, 1948) was a Jewish-American lawyer and judge from New York.
He was admitted to the bar in 1901, and continued working for Backus for the next five years, partly as a law partner.
In 1919, he investigated and indicted the people responsible for the Malbone Street wreck and convicted the bandits Chapman and Hanby.
In 1931, Governor Franklin Roosevelt appointed him to preside in a special Supreme Court session for cases involving bank scandals in Manhattan and Brooklyn.
He was elected a delegate-at-large to the 1938 New York Constitutional Convention, where he was chairman of the Bill of Rights Committee, proposed wire-tapping be made legal by court order (which was objected at the time), and instrumented a civil rights section to the State Constitution that guaranteed no one could be discriminated regardless of race or creed.
As Justice, Lewis favored capital punishment, life imprisonment for habitual offenses, and a simplification of the laws.