Einstein is a German-Jewish surname. "Ein stein" is German for "a rock". It is strongly associated with German-born American physicist Albert Einstein. People with the surname include: Albert Einstein (1879–1955) Einstein family, including: Mileva Einstein (née Marić) (1875–1948), Serbian physicist and mathematician, first wife of Albert Einstein Hans Albert Einstein (1904–1973), Swiss-American engineer, son of Albert and Mileva Bernhard Caesar Einstein (1930–2008), German-American physicist, son of Hans Albert Einstein, grandson of Albert Einstein Thomas Helmut Einstein (born 1955), anesthesiologist and physician, son of Bernhard Caesar Einstein, great-grandson of Albert Einstein Eduard Einstein (1910–1965), second son of Albert and Mileva Elsa Einstein (1876–1936), cousin and second wife of Albert Einstein Hans Einstein (1923–2012), physician, grandson of a first cousin of Albert Einstein Alfred Einstein (1880–1952), musicologist and distant cousin of Albert Einstein