People
* Amy Denio (born 1961), soundtrack composer and songwriter * Elizabeth Denio (1842–1922), American teacher, first woman to teach at the University of Rochester * Hiram Denio (1799–1871), American lawyer and politician, Chief Judge of the New York Court of Appeals * Dênio Martins (born 1977), Brazilian footballerSee also
* Samfundet De Nio, Swedish literary society {{given name, type=both