Dalberg-Acton is a surname. Notable people with the surname include: John Dalberg-Acton, 1st Baron Acton, KCVO, DL (1834–1902), English Catholic historian, politician, and writer Ferdinand Dalberg-Acton (1801–1837), British baronet
See also Dalberg (disambiguation) Acton (surname) Lyon-Dalberg-Acton