William W. Mercer

Bill Mercer
Member of the Montana House of Representatives
from the 46th district
Assumed office
January 7, 2019
United States Associate Attorney General
Acting
In office
2006–2007
PresidentGeorge W. Bush
Preceded byRobert McCallum Jr.
Succeeded byGregory G. Katsas (acting)
United States Attorney for the District of Montana
In office
2001–2009
PresidentGeorge W. Bush
Preceded bySherry Scheel Matteucci
Succeeded byMichael W. Cotter
Personal details
Born1964 (age 6061)
Billings, Montana, U.S.
Political partyRepublican
SpouseMarci Mercer
Children2
EducationUniversity of Montana (BA)
George Mason University (JD)
Harvard University (MPA)

William Walter "Bill" Mercer (born 1964) is an American attorney and politician. He served as a member of the Montana House of Representatives from the 46th district. He previously served as the United States Attorney for the District of Montana, as well as principal associate deputy attorney general for the United States Department of Justice. Mercer was nominated by President George W. Bush as Associate Attorney General and served in the position in an acting capacity. He resigned before his confirmation hearing could take place.