General Campbell
- Alexander Campbell (died 1832)
- Alexander Douglas Campbell
- Alexander William Campbell (general)
- Angus Campbell (general)
- Archibald Campbell (British Army officer, born 1739)
- Archibald Campbell (British Army officer, born 1774)
- Archibald Campbell, 1st Duke of Argyll
- Archibald Campbell, 1st Marquess of Argyll
- Attorney General Campbell (disambiguation)
- Barrington Campbell, 3rd Baron Blythswood
- Boniface Campbell
- Charles C. Campbell (general)
- Charles Thomas Campbell
- Colin Campbell (British Army officer, born 1754)
- Colin Campbell (British Army officer, born 1776)
- Colin Campbell, 1st Baron Clyde
- Craig Campbell (politician)
- David Campbell (British Army officer)
- Donald M. Campbell Jr.
- Duncan Campbell (British Army general)
- Frederick Campbell (British Army officer, born 1780)
- Gunning Campbell
- Harold D. Campbell
- Henry Frederick Campbell
- Ian Ross Campbell
- James Campbell (British Army officer, died 1745)
- James Campbell (Royal Marines officer)
- James L. Campbell
- James R. Campbell (Illinois politician)
- Jock Campbell (British Army officer)
- John Allen Campbell
- John Campbell (1802–1878)
- John Campbell, 1st Marquess of Breadalbane
- John Campbell, 2nd Duke of Argyll
- John Campbell, 4th Duke of Argyll
- John Campbell, 4th Earl of Loudoun
- John Campbell, 5th Duke of Argyll
- John F. Campbell (general)
- John Hasluck Campbell
- John Vaughan Campbell
- Kathryn Campbell
- Kevin T. Campbell
- Levin H. Campbell Jr.
- Lloyd Campbell (general)
- Murdock A. Campbell
- Neil Campbell (British Army officer)
- Patrick Campbell (British Army officer, born 1684)
- Shawn W. Campbell
- Sir Alexander Campbell, 1st Baronet
- Sir Archibald Campbell, 1st Baronet
- Sir Guy Campbell, 1st Baronet
- Sir James Campbell, 1st Baronet
- Sir John Campbell, 1st Baronet
- Victor Campbell (British Army officer)
- Walter Campbell (British Army officer)
- William B. Campbell
- William Campbell (general)
- William J. Campbell (general)
- William Pitcairn Campbell