David Day

• David Day , author from British Columbia
• David Day , Australian historian
• David Day , Australian radio broadcaster, known as "Daisy"
• Dave Day of the punk band The Monks
• David Day , politician from Minnesota Territory
• David Day , American former politician in the Missouri House of Representatives
• David A. Day , Lutheran missionary
• David F. Day, Union Army soldier and Medal of Honor recipient
• David V. Day, British theologian and academic
• David Van Day, English singer and media personality