John Campbell, 2nd Baronet
Sir John Campbell, 2nd Baronet is the name of the following people:
- John Campbell, 2nd Baronet (of Ardnamurchan) (1877–1943), British nobleman
- John Campbell, 2nd Baronet (of Carrick Buoy) (1799–1870), British diplomat
- John Campbell, 2nd Baronet (of New Brunswick) (1807–1855), British Major General
