Steel is a surname. Notable people with the surname include:
A. G. Steel (1858–1914), English cricketerAnthony Steel (historian) (1900–1973), British medieval historianBilly Steel (1923–1982), Scottish footballerSir Christopher Steel (diplomat) (1903–1973), British ambassadorChristopher Steel (1938–1991), British composerBryan Steel (born 1969), English cyclist and multiple Olympic medallistDanielle Steel (born 1947), American author known for her romance novelsDavid Steel (disambiguation), various peopleDawn Steel (1946–1997), one of the first women to run a major Hollywood film studioDick Steel (born 1930), English professional footballer"Doctor Steel", American musician heading an alternative bandDuncan Steel (born 1955), British/Australian astrophysicistFlora Annie Steel (1847–1929), English writerFreda Steel, Manitoba judgeHollie Steel (born 1998), English schoolgirl singerIan Steel (1928–2015), Scottish racing cyclistJohn Steel (disambiguation), various peopleKat Steel, American actress and hostMark Steel (born 1960), English socialist columnist, author and comedianMichael Steel (disambiguation), various people and fictional charactersRobert K. Steel (born 1951), American businessmanSimon Steel (born 1969), English cricketer