Haber is a surname of German origin. The meaning in old German is "oat". The cereal is now in German called "Hafer". Notable people with this surname include:
Alan Haber, American student activistBernard Haber (1920–1959), New York assemblymanBrett Haber, American sportscasterEitan Haber (born 1940), Israeli journalistFritz Haber (1868–1934), German chemist and Nobel Prize winnerHeinz Haber (1913–1990), German physicist and science writerJustin Haber (born 1981), Maltese footballerMarco Haber (born 1971), German footballerMarcus Haber (born 1989), Canadian soccer playerPeter Haber (born 1952), Swedish actorRalf Haber (born 1962), German hammer throwerShamai Haber (1922-1995), sculptorYaacov Haber, rabbiYvonne Haber, Australian architect