Barnett is both a surname and a masculine given name.
Barnett may also refer to:
Barnett class lifeboat, operated by the RNLI between 1923 and 1989 Barnett effect, magnetisation of spinning objects Barnett formula, in UK public expenditure Barnett, Georgia, a community in the United States Barnett Township (disambiguation), various townships in the United States
See also Barnet (disambiguation) Burnett (surname) Francis-Barnett, a motorcycle manufacturer