Rear Admiral Katherine Louise Gregory[1] (born January 27, 1961) is the first female flag officer in the United States Navy Civil Engineer Corps (CEC).

She has completed the Senior Executive Program at the London School of Business, is a registered professional engineer in the Commonwealth of Virginia, and is a qualified military parachutist and Seabee combat warfare officer.

She left the Bay Area for the Aleutian Islands to serve as the Naval Air Station Adak public works officer.

In 1995 Gregory returned to the Seabees, serving as the executive officer of Naval Mobile Construction Battalion 1 (NMCB-1), homeported in Gulfport, Mississippi, and deploying to the Western Pacific and the Mediterranean.

Gregory was promoted to the rank of rear admiral on June 1, 2010 and assumed command of NAVFAC Pacific, in Pearl Harbor, Hawaii on July 9, 2010.