Sydney Chapman may refer to:
- Sir Sydney Chapman (economist) (1871–1951), British economist and civil servant
- Sydney Chapman (mathematician) FRS (1888–1970), British mathematician
- Sir Sydney Chapman (politician) (born 1935), former British Conservative MP
Famous quotes containing the words sydney and/or chapman:
“If ever there was an aviary overstocked with jays it is that Yaptown-on-the-Hudson, called New York.”
—O. Henry [William Sydney Porter] (1862–1910)
“The average educated man in America has about as much knowledge of what a political idea is as he has of the principles of counterpoint. Each is a thing used in politics or music which those fellows who practise politics or music manipulate somehow. Show him one and he will deny that it is politics at all. It must be corrupt or he will not recognize it. He has only seen dried figs. He has only thought dried thoughts. A live thought or a real idea is against the rules of his mind.”
—John Jay Chapman (1862–1933)