thumb|The grave of H B Acton, Grange Cemetery, Edinburgh
Harold Burrows Acton (2 June 1908 – 16 June 1974) was an English academic in the field of political philosophy, known for books defending the morality of capitalism, and attacking Marxism-Leninism. He in particular produced arguments on the incoherence of Marxism, which he described as a 'farrago' (in philosophical terms). His book The Illusion of the Epoch, in which this appears, is a standard point of reference. Other interests were the Marquis de Condorcet, Hegel, John Stuart Mill, Herbert Spencer, F. H. Bradley, Bernard Bosanquet and Sidney Webb. Acton also endorsed a version of negative utilitarianism, according to which the reduction of suffering has unique moral importance.
'Harry' Acton held teaching positions at University College, Swansea, Bedford College and the University of Edinburgh where he occupied the Chair of Moral Philosophy.