David Turnbull
David Turnbull may refer to:
- David Turnbull (politician), Canadian politician
- David Turnbull (abolitionist), British abolitionist and British consul to Cuba
- David Turnbull (materials scientist), American physical chemist
- David Turnbull (priest), Archdeacon of Carlisle
- David Turnbull (footballer), Scottish footballer
- Reg Turnbull, Australian politician, sometimes known as David Turnbull