Barry Keith Grant is a Canadian-American critic, educator, author and editor who best known for his work on science fiction films, horror films and popular music. Grant is recognized as one of the leading experts on the work of American documentary filmmaker Frederick Wiseman. An Elected Fellow of the Royal Society of Canada, Grant has authored or edited more than two dozen books on these subjects, several of which have become standard course texts on film studies. He has also been a featured critic on CBC radio.