David Dennison may refer to:
David Dennison (cricketer) (born 1961), Irish cricketer David Dennison (pseudonym), one of three notable pseudonyms of Donald Trump, used to preserve anonymity in early proceedings of Stormy Daniels legal case through a non-disclosure agreement David M. Dennison (1900–1976), American physicist David S. Dennison Jr. (1918–2001), American politician in the US House of Representatives