David Brewster (1781–1868) was a Scottish scientist, inventor and writer.
David Brewster may also refer to:
David P. Brewster (1801–1876), U.S. Representative from New York David Brewster (journalist) (born 1939), American journalist, founder of the Seattle Weekly and Crosscut.com David Brewster (painter) (born 1960), American painter David Brewster (politician) (1964–2021), former Ulster unionist politician Dave East, (birth name David Brewster Jr., born 1988) American rapper