Steel is a surname. Notable people with the surname include:
A. G. Steel (1858–1914), English cricketer
Anthony Steel (historian) (1900–1973), British medieval historian
Billy Steel (1923–1982), Scottish footballer
Sir Christopher Steel (diplomat) (1903–1973), British ambassador
Christopher Steel (1938–1991), British composer
Bryan Steel (born 1969), English cyclist and multiple Olympic medallist
Danielle Steel (born 1947), American author known for her romance novels
David Steel (disambiguation), various people
Dawn Steel (1946–1997), one of the first women to run a major Hollywood film studio
Dick Steel (born 1930), English professional footballer
"Doctor Steel", American musician heading an alternative band
Duncan Steel (born 1955), British/Australian astrophysicist
Flora Annie Steel (1847–1929), English writer
Freda Steel, Manitoba judge
Hollie Steel (born 1998), English schoolgirl singer
Ian Steel (1928–2015), Scottish racing cyclist
John Steel (disambiguation), various people
Kat Steel, American actress and host
Mark Steel (born 1960), English socialist columnist, author and comedian
Michael Steel (disambiguation), various people and fictional characters
Robert K. Steel (born 1951), American businessman
Simon Steel (born 1969), English cricketer
