Nies is a surname. Notable people with the surname include:
Eric Nies (born 1971), American fashion model and television personality Frank J. Nies, American architect Franz Xaver Nies (1859–1897), German Catholic missionary Helen W. Nies (1925–1996), United States federal judge Jack Nies (born 1937), American basketball referee John Nies (born 1967), American football player and model Susanne Nies, German businesswoman