Charles Rennie Mackintosh (1868 - 1928) was a Scottish architect, interior designer, designer, graphic artist, painter and craftsman.
Mackintosh formed, together with his wife Margaret McDonald Mackintosh, her sister Frances MacDonald McNair and James Herbert McNair the group "The Four", which was particularly influential on the Glasgow School.
In the late 19th century he was one of the leading figures in the Art Nouveau movement. He gave a decisive impetus to the modern design and is a forerunner of Modern Art.