Geza von Hoffmann (1885–1921) was a prominent Austrian-Hungarian eugenicist and writer. He lived for a time in California as the Austrian Vice-Consulate where he observed and wrote on eugenics practices in the United States. His best known book, Die Rassenhygiene in den Vereinigten Staaten von Nordamerika (Racial Hygiene in the United States of America) described his observations in America. His reports on American eugenicist activity influenced German and especially Berlin eugenicists up to the first World War. He served as a key connection between American and German eugenics activities.