'Herman' can be just 'Herman', or 'Hermanni'. Very rare one is also 'Herkko'.
Bill Haley and the Comets the Happenings Heart Herman's Hermits
James Cook was accompanied by three botanists: Sir Joseph Banks, and Swedish and Finnish botanists Daniel Solander and Dr Herman Spöring.
Herman Lewis's birth name is Herman Levy.
Herman Schopp's birth name is Herman Schope.
Herman Boden's birth name is Herman Bodendorfer.
Jean Herman's birth name is Jean Herman.
Finnish name
Herman Bell's birth name is Herman S. Bell.
Herman Edwards's birth name is Herman Lee Edwards.
Herman Franks's birth name is Herman Louis Franks.
Herman Darewski's birth name is Herman Edouard Darewski.
Herman Weaver's birth name is William Herman Weaver.