'''William Bragg''' may refer to:
* Billy Bragg (born 1957), English musician * Will Bragg (born 1986), Welsh cricketer * William Henry Bragg (1862–1942), 1915 Nobel Prize–winning physicist (joint, with his son) * William Lawrence Bragg (1890–1971), 1915 Nobel Prize–winning physicist (joint, with his father) * William John Bragg (1858–1941), Ontario farmer and political figure * William Bragge (1822–1882), English civil engineer and antiquarian * William Bragg's Mill, Ashdon
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