Bayer means "someone from Bavaria" (a region in southeastern Germany). This name and its variants are very common in countries where German and Germanic languages are spoken.
Balázs Déri's opinion
Bayer and some of schwab nation may descend from A'ab-Ba-Wa-Sha-Yer from the family of A'ayanna-Ma ,Anned-Abba ,A'abba-Wa-Hawalla ,Am-Mayalawat-Da ,Awash-Er-Gawa and others of arawak origin.
-whom jews and christians call Abushir,Onam,Nadab,Abihail,Molid ans Yishei.
See Hollander ,Amsterdamer, Schwab,Német !