Steel is a surname. Notable people with the surname include:

A. G. Steel (1858–1914), English cricketer
Ace Steel (born 1973), ring name of Christopher Guy, American professional wrestler
Alan Steel (1935–2015), stage name of Sergio Ciani, Italian bodybuilder and actor
Alex Steel (1886–1954), Scottish footballer
Amy Steel (born 1960), American actress
Amy Steel (netball) (born 1989), Australian netballer
Anthony Steel (disambiguation), various people
Arthur Steel-Maitland (1876–1935), British politician
Barbara Steel (1857–1943), Scottish-South African suffragette
Belle Steel, Irish Presbyterian
Ben Steel (born 1975), Australian actor
Bill Steel (born 1939), English broadcaster and actor
Billy Steel (1923–1982), Scottish footballer
Bobby Steel (1888–1972), Scottish footballer 
Bruce Steel (born 1966), American tennis player
Brynjolf Steel ( – ), Norwegian liegeman
Bryan Steel (born 1969), English cyclist and multiple Olympic medallist
Cameron Steel (born 1995), English cricketer
Carly Steel (born 1987), British television presenter and actress
Catherine Steel (born 1973), British classical scholar
Charles Steel (1901−1993), British Army officer and civil servant
Christine Steel, American actress
Christopher Steel (disambiguation), various people
Cynthia Dianne Steel, American judge
Danielle Steel (born 1947), American author known for her romance novels
Danny Steel (1884–1931), Scottish footballer
David Steel (disambiguation), various people
Dawn Steel (1946–1997), one of the first women to run a major Hollywood film studio
Dick Steel (1930–1991), English professional footballer
Doctor Steel, stage name of Rion Vernon, American musician heading an alternative band
Dorothy Steel (disambiguation), various people
Douglas Steel (1856–1933), English cricketer
Duncan Steel (born 1955), British/Australian astrophysicist
Duncan G. Steel (born 1951), American experimental physicist
Elizabeth Steel  – 1795), English convict sent to Australia
Elliot Steel, British comedian
Eric Steel, American filmmaker and producer
Flora Annie Steel (1847–1929), English writer
Fred Steel (1884–bef. 1945), English footballer
Freda Steel, Manitoba judge
Gary Steel (born 1954), Australian rules footballer
Gemma Steel (born 1985), British runner
Geoff Steel, British auto racing driver and engineer
George Steel (disambiguation), various people
Georgia Steel (born 1998), English television personality
Harold Steel (1862–1911), English cricketer 
Harry Steel (disambiguation), various people
Heather Steel (born 1940), British judge
Hollie Steel (born 1998), English schoolgirl singer
Ian Steel (1928–2015), Scottish racing cyclist
J.A. Steel (born 1969), American writer, director, producer, editor, stunt person and actress
Jack Steel (1898–1941), New Zealand rugby union player
James Steel (disambiguation), various people
Jody Steel, American artist
John Steel (disambiguation), various people
Jon Steel (born 1980), English rugby player
Karen Steel, British scientist
Kenneth Steel (1906–1970), British painter and engraver
Kevin Steel (born 1991), American swimmer
Liam Steel (born 1991), New Zealand rugby union player
Louise Steel (disambiguation), various people
Mark Steel (born 1960), English socialist columnist, author and comedian
Max Steel (disambiguation), various people
Melissa Steel (born 1993), English singer
Michael Steel (disambiguation), various people
Michelle Steel (born 1955), American politician
Nate Steel, American attorney and politician
Paul Steel (born 1970), New Zealand squash player and coach
Pippa Steel (1948–1992), British actress 
Ric Steel (born 1952), American singer
Robert Steel (disambiguation), various people
Ronald Steel (1931–2023), American writer and historian
Ronnie Steel (1929–2009), English footballer
Thomas B. Steel (born 1929), American computer scientist
Tommy Steel, Scottish-American soccer player
Trevor Steel (born 1958), English singer-songwriter
Sam Steel (born 1998) Canadian ice hockey player
Samuel Strang Steel (1882–1961), British politician
Scudamore Winde Steel (1789–1865), British army officer of the East India Company
Shawn Steel (born ), American politician and husband of Michelle Steel
Simon Steel (born 1969), English cricketer
William Steel (disambiguation), various people

English-language surnames