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)
“In the adjustment of the new order of things, we women demand an equal voice; we shall accept nothing less.”
—Carrie Chapman Catt (1859–1947)