John Lyon-Dalberg-Acton may refer to:
- John Lyon-Dalberg-Acton, 3rd Baron Acton, CMG, MBE, TD, DL (1907–1989), British Peer
- John Lyon-Dalberg-Acton, 5th Baron Acton, (born 1966), author and farmer
This disambiguation page lists articles about people with the same name.
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