Greeley is a surname. Notable people with the surname include:
Absalom Greeley (1823–1885), Canadian politician
Andrew Greeley (1928–2013), American priest, sociologist, and author
Arthur White Greeley (1875–1904), American physiologist and ichthyologist
Bucky Greeley (born 1972), American football player
Dana McLean Greeley (1908–1986), American Christian minister
Edwin S. Greeley (1832–1920), American industrialist
Elam Greeley (1818–1882), American politician
Evelyn Greeley (1888–1975), American silent film actress
Frederick Atwood Greeley (1896–1980), American astronomer
George Greeley (1917–2007), Italian-American pianist and conductor
Greg Greeley, American businessman
Helen Hoy Greeley (1878–1965), American suffragist
Henry Clay Greeley, American politician
Horace Greeley (1811–1872), American newspaper editor, reformer and politician
Isabel Greeley (1843–1928), American educator
Jason Greeley (born 1977), Canadian singer-songwriter
Jimmy Greeley (born 1945), Irish radio presenter
Julia Greeley (birth year uncertain, died 1918), African-American ex-slave and philanthropist
Jonathan Greeley (1741–1781), American sea captain
Kym Greeley (born 1973), Canadian painter
Martin Greeley (1814–1899), American politician
Mellen Clark Greeley (1880–1981), American architect
Mary Young Cheney Greeley (1811–1872), American suffragist
Nixola Greeley-Smith (1880–1919), American journalist
Olive A. Greeley (1901–1982), Astrophyisical assistant
Ronald Greeley (1939–2011), American geologist and planetary scientist
Samuel Arnold Greeley (1882-1968), American civil engineer
William B. Greeley (1879–1955), American forester, third chief of the US Forest Service