Silphium perfoliatum

Bayer is a German multinational pharmaceutical and biotechnology company.

Bayer may refer to:

a native or inhabitant of the Free State of Bavaria (Freistaat Bayern)
Bayer (crater), a lunar crater
Bayer filter, a color filter mosaic also known as a Bayer pattern or Bayer mask, used in digital camera image sensors
Bayer designation for star names
KFC Uerdingen 05, formerly known as FC Bayer 05 Uerdingen, a German football club
Bayer Leverkusen, a German sports and football club
Bayer 04 Leverkusen, a German woman's handball club
Bayer Esporte Clube, a Brazilian football club
Baeyer's reagent, a mild oxidation reagent used in organic chemistry
Bayer (surname), list of people with this name

See also