Gregory John Mackintosh (born 20 June 1970), nicknamed Gregor or Greg, is a British guitarist and singer. He is the lead guitarist in the metal band Paradise Lost, which he founded in 1988 together with singer Nick Holmes, rhythm guitarist Aaron Aedy, and bassist Steve Edmondson. He is the main composer of one of the pioneer bands and founding fathers of the gothic metal genre, considered to be influential to many other artists.