Vernam is a surname. Notable people with the surname include:
Charles Vernam (born 1996), English professional footballer Gilbert Vernam (1890–1960), invented an additive polyalphabetic stream cipher and later co-invented an automated one-time pad cipher Remington D. B. Vernam (1896–1918), American pilot and World War I flying ace Remington Vernam (land developer) (1843–1907), American lawyer and real-estate developer from New York, founder of the community of Arverne
See also Vernam Field, former World War II United States Army Air Forces airfield in Clarendon Parish, west-south-west of Kingston, Jamaica Vernam cipher, an encryption technique that cannot be cracked, but needs a one-time pre-shared key at least as long as the message being sent Enam (disambiguation) Erna (disambiguation) Vena (disambiguation) Vera (disambiguation) Verna (disambiguation)