Fieber is a German surname. Notable people with the surname include:
Clarence Fieber (1913–1985), American Baseball pitcher Franz Xaver Fieber (1807–1872), German botanist and entomologist Peter Fieber (born 1964), Slovak football player Peter Fieber (footballer born 1989) (born 1989), Slovak football player
See also Fever (2014 film), a 2014 Austrian film Fieber (Christina Stürmer song), released in 2008 Fieber (Oomph! song), released in 1999