Baron Acton is a title in the Peerage of the United Kingdom. It was created in 1869. In 2000, the fourth Baron was created a life peer as Baron Acton of Bridgnorth.
Barons Acton (1869)
- John Emerich Edward Dalberg-Acton, 1st Baron Acton (1834-1902)
- Richard Maximilian Lyon-Dalberg-Acton, 2nd Baron Acton (1870-1924)
- John Emerich Henry Lyon-Dalberg-Acton, 3rd Baron Acton (1907-1989)
- Richard Gerald Lyon-Dalberg-Acton, 4th Baron Acton (b. 1941)