Daniel B. Lloyd is a retired United States Coast Guard Rear Admiral.

Lloyd assumed the duties of Military Advisor to the Secretary, United States Department of Homeland Security, in June 2006.

In this role, he was responsible for advising the Secretary on matters involving coordination between the Department of Homeland Security and all branches of the military.

His command tours include Coast Guard Air Station Houston, Texas, a deploying HH-65 helicopter unit, and Air Station Clearwater, Fla., the Coast Guard's largest operational unit operating HH-60 JayHawk helicopters and HC-130H aircraft.

Rear Admiral Lloyd's first assignment as a flag officer was as Senior DHS Advisor to the Commander, NORAD and USNORTHCOM.