John Henley Heathcote-Williams (15 November 1941 – 1 July 2017), known as Heathcote Williams, was an English poet, actor, political activist and dramatist. He wrote a number of book-length polemical poems including Autogeddon, Falling for a Dolphin and Whale Nation, which in 1988 was described by Philip Hoare as "the most powerful argument for the newly instigated worldwide ban on whaling.

" Williams invented his idiosyncratic "documentary/investigative poetry" style which he put to good purpose bringing a diverse range of environmental and political matters to public attention. His last published work, American Porn was a critique of the American political establishment and the election of President Donald Trump; its publication date was the day of Trump's inauguration (20 January 2017). In June 2015 he published a book-length investigative poem about the "Muslim Gandhi", Khan Abdul Ghaffar Khan, Badshah Khan.