Gregory G. Katsas

Gregory G. Katsas
Official portrait, 2008
Judge of the United States Court of Appeals for the District of Columbia Circuit
Assumed office
December 8, 2017
Appointed byDonald Trump
Preceded byJanice Rogers Brown
Deputy White House Counsel
In office
January 20, 2017  December 8, 2017
PresidentDonald Trump
LeaderDon McGahn
United States Assistant Attorney General for the Civil Division
In office
July 2008  January 20, 2009
PresidentGeorge W. Bush
Preceded byPeter Keisler
Succeeded byTony West
Acting United States Associate Attorney General
In office
June 22, 2007  April 2008
PresidentGeorge W. Bush
Preceded byWilliam W. Mercer (acting)
Succeeded byKevin J. O'Connor
Personal details
Born (1964-08-06) August 6, 1964
Boston, Massachusetts, U.S.
Political partyRepublican
EducationPrinceton University (BA)
Harvard University (JD)

Gregory George Katsas (born August 6, 1964) is an American lawyer and jurist serving as a United States circuit judge of the U.S. Court of Appeals for the District of Columbia Circuit. He was appointed in 2017 by President Donald Trump. Before his appointment to the bench, Katsas served as Deputy White House Counsel in the first Trump administration, as an assistant attorney general in the United States Department of Justice, and as a partner at the law firm Jones Day.