The surname Graf is German in origin. It has been found written as Graf, Graff,Grav, Grafe, and Graaf. The Graf side of my family arrived in the United States in the mid 1800's coming from Rockenhausen, Germany. The first Graf ancestor in my family to come to the United States was Casper Graf. His son, Valentine Graf is my great grandfather. Casper Graf settled in the Miami County area of Indiana. Valentine Graf and his family moved to Manistee County, Michigan in the early 1900's.