David Lyon
David Lyon may refer to:
- Dave Lyon , English football forward
- Dave Lyon , English football defender
- Dave Lyon , Canadian track and field coach
- David Lyon , British actor
- David Lyon , English cricketer
- David Lyon , car designer
- David Lyon , English rugby league and rugby union player
- David Lyon , professor of sociology at Queen's University, Kingston, Ontario
- David Lyon , West India merchant, Member of Parliament and landowner
- David Gordon Lyon, American theologian
- David Murray Lyon, British physician and medical author
- David Bowes-Lyon, brother of Elizabeth Bowes-Lyon, the Queen Mother
- David Murray-Lyon, officer in the Indian Army
- David Lyon , disqualified governor-elect of Bayelsa State