Astor is a surname. Notable people with the surname include:
Ava Alice Muriel Astor (1902–56), daughter of John Jacob Astor IV
Brooke Astor (1902–2007), American philanthropist
David Astor (1912–2001), British newspaper publisher
John Jacob Astor (1763–1848), fur-trader and first multi-millionaire of America
John Jacob Astor III (1822–90), financier
John Jacob Astor IV (1864–1912), richest passenger on the RMS Titanic
John Jacob Astor VI (1912–92), son of John Jacob Astor IV and Madeleine Astor
Madeleine Astor (1893–1940), wife of John Jacob Astor IV
Mary Astor (1906–1987), Academy Award-winning American actress
Nancy Astor, Viscountess Astor (1879–1964), first woman to serve as a British Member of Parliament
Vincent Astor (1891–1959), American businessman and philanthropist
Waldorf Astor, 2nd Viscount Astor (1879–1952), politician and newspaper proprietor
William Backhouse Astor, Sr. (1792–1875), businessman
William Backhouse Astor, Jr., (1829–92), businessman
William Waldorf Astor, 1st Viscount Astor (1848–1919), attorney
