| William T Fujioka | |
| Office: | Chief Executive Officer of Los Angeles County |
| Term Start: | July 23, 2007 |
| Term End: | November 30, 2014 |
| Predecessor: | David E. Janssen |
| Successor: | Sachi A. Hamai |
| Office2: | City Administrative Officer of the City of Los Angeles |
| Term Start2: | August 1997 |
| Term End2: | December 2006 |
| Predecessor2: | Keith Comrie |
| Successor2: | Karen Sisson |
| Residence: | Bradbury, California |
| Alma Mater: | University of California, Santa Cruz |
William T. "Bill" Fujioka is a former Chief Executive Officer (CEO) of Los Angeles County, having been appointed on July 23, 2007 by the Los Angeles County Board of Supervisors at a starting annual salary of . As of September 2, 2013, he earned an annual salary of . As the County executive, he administered the largest county in the United States, with an annual budget of and over 100,000 employees.
Fujioka attended the University of California, Santa Cruz from 1970 to 1974, earning a Bachelor of Arts degree in sociology. Before his appointment as the County's CEO, Fujioka was the City of Los Angeles' City Administrative Officer from August 1999 to February 2007. Fujioka has been a civil servant since 1975, in positions with the City of Los Angeles and Los Angeles County. On June 28, 1999, Richard Riordan, then the mayor of Los Angeles, appointed Fujioka as the City's Administrative Officer. Less than a year later, on January 21, 2000, Fujioka was fired by Riordan for his perceived ties with the Los Angeles City Council and conflicts with the mayor. He successfully fought his dismissal and retired after 7 years at his post, in December 2006.
Less than six months later, the Los Angeles County Board of Supervisors voted to appoint Fujioka as the County's new chief executive officer. In 2008, Fujioka ended the 15-year-old practice of weekly press briefings, which had been standard practice since 1993. He retired as CEO of Los Angeles County at the end of November 2014.
Fujioka, a third-generation (sansei) Japanese American, was born to parents William and Linda Fujioka and raised in Boyle Heights and Montebello, California. He is married to Darlene Kuba. Throughout his career, Fujioka did not publicize his marriage to Kuba, who is a longtime Los Angeles City Hall lobbyist. Fujioka resides in Bradbury, California.