John Bolton (born 23 May 1951) is a British comic book artist and illustrator most known for his dense, painted style, which often verges on photorealism.

Born 23 May 1951 in London, England, Bolton's introduction to comics came about quite casually after he graduated from East Ham Technical College (whose former alumni include Gerald Scarfe, Barry Windsor-Smith and Ralph Steadman) with a degree in graphics and design.

His first works in Great Britain were for magazines like Look In (alongside other British talents such as Arthur Ranson, Angus P. Allan and Jim Baikie), The House of Hammer,[3] and Warrior (edited by Dez Skinn).

After illustrating two Kull stories, Bolton began working on the historical-fantasy character Marada, written by Chris Claremont (author of X-Men).

His latest works include User, written by Devin Grayson, Menz Insana, a mad trip by Christopher Fowler, and Gifts of the Night by Paul Chadwick.