David Shulman (November 12, 1912 – October 30, 2004) was an American lexicographer and cryptographer. He contributed many early usages to the Oxford English Dictionary and is listed among "Readers and contributors from collections" for the second edition of the OED (1989). He felt most at home in the New York Public Library, undertaking his lexicographic research there and donating many valuable items to it. He described himself as "the Sherlock Holmes of Americanisms". He was a member of the American Cryptogram Association since 1933, and was a champion Scrabble player.