Duncan Forbes
Duncan Forbes may refer to:
- Duncan Forbes of Culloden (politician, died 1654), Scottish politician and burgh commissioner for Inverness
- Duncan Forbes of Culloden (politician, born 1644), Scottish politician and supporter of the House of Hanover, grandson of the above
- Duncan Forbes of Culloden (judge, born 1685), Scottish politician and judge, son of the above
- Duncan Forbes (linguist), Scottish linguist
- Duncan Forbes (historian), Scottish historian
- Duncan Forbes (footballer), Scottish footballer
- Duncan Forbes (poet), British poet
- Duncan Forbes (Royal Marines officer), British major-general