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:
“You can’t appreciate home till you’ve left it, money till it’s spent, your wife till she’s joined a woman’s club, nor Old Glory till you see it hanging on a broomstick on the shanty of a consul in a foreign town.”
—O. Henry [William Sydney Porter] (1862–1910)
“All progress is experimental.”
—John Jay Chapman (1862–1933)