|Allegiance United States|
Name Duvall Williams
Rank Rear admiral
|Years of service ?–1992|
|Commands held Naval Investigative Service|
Service/branch United States Navy
Duvall McClellan (Mac) Williams, Jr. was a rear admiral in the United States Navy who was a commander of the United States Naval Investigative Service. His tenure included the time of the Tailhook scandal; he and Rear Admiral John E. Gordon were tasked with conducting the investigation. After their report was subject to harsh criticism by the Pentagon in 1992, Williams and Gordon resigned.