威廉·布莱克（William Blake，1757年11月28日－1827年8月12日），英国诗人、画家，浪漫主义文学代表人物之一。

布莱克出生于伦敦一个贫寒的袜商家庭，未受过正规教育，14岁当雕版学徒，后于1779年入英国皇家艺术学院学习美术，1782年结婚。不久以后，布莱克印刷了自己的第一本诗集——Poetical Sketches。1784年，在父亲过世后，布莱克开始与著名出版商约瑟夫·约翰逊合作。在约翰逊的合作者中包括当时英国许多优秀人物，如：约瑟夫·普莱斯利、玛丽·沃斯通克拉夫特和托马斯·佩恩等等。

William Blake (28 November 1757 – 12 August 1827) was an English poet, painter, and printmaker. Largely unrecognised during his lifetime, Blake is now considered a seminal figure in the history of the poetry and visual arts of the Romantic Age. His prophetic poetry has been said to form "what is in proportion to its merits the least read body of poetry in the English language". His visual artistry led one contemporary art critic to proclaim him "far and away the greatest artist Britain has ever produced". In 2002, Blake was placed at number 38 in the BBC's poll of the 100 Greatest Britons. Although he lived in London his entire life (except for three years spent in Felpham), he produced a diverse and symbolically rich œuvre, which embraced the imagination as "the body of God" or "human existence itself".