Dan, Danny or Daniel Barrett may refer to:
Musicians Dan Barrett (born 1980), American musician, founding member of rock duo Have a Nice Life Dan Barrett (jazz musician) (born 1955), American jazz trombonist
Sportsmen Danny Barrett (American football) (born 1961), quarterback and coach Daniel Barrett (footballer) (born 1980), English footballer for Chesterfield Dan Barrett (soccer coach), Australian soccer coach since 2014 Danny Barrett (rugby union) (born 1990), American rugby player
Others Dan Barrett (politician), American attorney, judicial candidate from North Carolina Daniel J. Barrett (born 1963), American writer and software engineer Daniel Barrett (visual effects supervisor), American film technician, Academy Award winner for 2022's Avatar: The Way of Water