David Day

David Day may refer to:


 * David Day (Canadian writer) (born 1947), author from British Columbia
 * David Day (historian) (born 1949), Australian historian
 * David Day (broadcaster) (1951–2015), Australian radio broadcaster, known as "Daisy"
 * Dave Day (musician) (1941–2008) of the punk band The Monks
 * David Day (Minnesota politician) (1825–1896), politician from Minnesota Territory
 * David Day (Missouri politician) (born 1963), American former politician in the Missouri House of Representatives
 * David A. Day (missionary) (1854–1897), Lutheran missionary
 * David F. Day (1847–1914), Union Army soldier and Medal of Honor recipient
 * David V. Day (born 1936), British theologian and academic
 * David Van Day (born 1956), English singer and media personality