Lord Campbell may refer to:
- Lord Campbell, Lordship of Parliament created in 1445, a subsidiary title of the Duke of Argyll
- Lord John Campbell (1779–1861), Baron Campbell, Lord High Chancellor of Great Britain and Lord High Chancellor of Ireland, and author of Lives of the Lord Chancellors
- Lord Colin Campbell (1853–1895)
- Lord Frederick Campbell (1729–1816)
- Lord Neill Campbell (c. 1630–1692)
- Jock Campbell, Baron Campbell of Eskan (1912–1994), British businessman
- Lord William Campbell (1731–1778), Governor of South Carolina
- Alan Campbell, Baron Campbell of Alloway (1917–2013)
- Duncan Campbell, 1st Lord Campbell (died 1453)
- Lord Campbell of Loudoun
- Menzies Campbell, Baron Campbell of Pittenweem (born 1941), former leader of the Liberal Democrats
- Gordon Campbell, Baron Campbell of Croy (1921–2005)