Oscar Sydney Cox (December 3, 1905 – October 4, 1966) was an American lawyer and judge.
He was associated with the law firm Cadwalader, Wickersham & Taft in New York City.
In 1938, he left New York City for a post with the United States Department of the Treasury.
In 1941, Cox was appointed general counsel of the Lend-Lease Administration and the Office for Emergency Management (1941-1943).
[1] Cox was born on December 3, 1905, in Portland, Maine, to a Jewish family.