Hartnett may refer to:
People Angela Hartnett (born 1969), British chef Gabby Hartnett (1900–1972), American baseball player and manager Jimmy Hartnett (1927–1988), Irish former professional footballer Josh Hartnett (born 1978), American actor Josie Hartnett (1927–2005), Irish sportsperson Kevin Hartnett (born 1984), Irish sportsperson Laurence Hartnett (1898–1986), engineer who made several important contributions to the Australian automotive industry Maurice A. Hartnett III (1927–2009), American judge from Delaware Michael Hartnett (1941–1999), an Irish poet P. P. Hartnett, (born 1958), Irish writer and photographer Paul Hartnett (1927–2022), American politician from Nebraska Sonya Hartnett (born 1968), Australian author Tim Hartnett (fl. 2020s), American politician from New Hampshire Thomas F. Hartnett (born 1941), American politician from South Carolina Will Ford Hartnett (born 1956), American politician from Texas William E. Hartnett (1919–2002), American politician and lawyer from Illinois William J. Hartnett (1932–2016), American politician and educator from Ohio
Other uses Hartnett (car), an automobile produced in Australia from 1951 to 1955 Hartnett House, predecessor to Bella Terra Publishing
See also Harnett (disambiguation)