Hunziker is a surname from Switzerland. The name most likely originates from the name of a small village in Canton Lucerne. Within Switzerland, the family expanded with a large presence in the Kulm, Zofingen, and Aarau districts of Canton Aargau and smaller concentrations in Cantons Bern, Lucerne, and Zürich. Significant emigration to the United States and Canada has occurred over several centuries. In the U.S., the name has commonly been anglicized to Hunsaker, Hunsicker, Hunsinger, Huntsinger, Hunsucker and many other variants.

William Jefferson Hunsaker (1855–1933) was an American lawyer and politician from San Diego and later Los Angeles, California. Hunsaker was the San Diego County District Attorney from 1882 to 1884, 4th Mayor of San Diego from 1887 to 1888 and president of the California Bar Association from 1913 to 1914.