Danelle Barrett (July 20, 1967 – August 26, 2024) was an American naval officer who served as a rear admiral (lower half) in the United States Navy.

She became an advocate for experimental treatments and care, focusing her presence online on mentorship and her carpe diem life philosophy.

[14] Barrett received her commission as an ensign from the Naval Reserve Officer Training Corps in a ceremony aboard the USS Constitution on August 28, 1989.

[7] After being promoted to rear admiral (lower half) on July 10, 2015, Barrett served as director of current operations at U.S. Cyber Command.

[1][6] Barrett's shore assignments included tours at Naval Computer and Telecommunications Stations in Cecil Field, Puerto Rico, and Jacksonville, Florida.

[1] In June 2021, Barrett published Rock the Boat: Embrace Change, Encourage Innovation, and Be a Successful Leader.