David Barrett may refer to:

• Dave Barrett (1930–2018), former Premier of British Columbia, Canada
• Dave Barrett (journalist) (1955–2018), American radio journalist at CBS Radio News
• David Barrett (American football) (born 1977), American football cornerback
• David Barrett (director), American television director and producer
• David Barrett (entrepreneur), American programmer and entrepreneur
• David Barrett (prosecutor)
• David Barrett (musician) (born 1973), American blues harmonica player, composer, and instructor
• David B. Barrett (1927–2011), professor and research secretary
• David D. Barrett (1892–1977), American soldier and diplomat
• David L. Barrett (1931–1999), American politician
• David M. Barrett (born c. 1951), American political science professor
• David V. Barrett, British sociologist of religion
• David E. Barrett, professor of mathematics
• David Michael Barrett (born 1971), screenwriter and film producer