Kaiser \ka(i)-ser\ as a boy's name is of Latin origin, and the meaning of Kaiser is "head of hair". Variant of Caesar. The name has connotations of imperial ruler, as in Germany's Kaiser Wilhelm.
Baby names that sound like Kaiser are Casar and Caezar. Other similar baby names are Kasey, Kasper, Gainer, Kadeer, Kasee, Kazmer, Keifer, Naser and Yasser.