John Henry Sununu (born July 2, 1939) is a Cuban-born American politician who served as the 75th governor of New Hampshire from 1983 to 1989 and as the 14th White House chief of staff under President George H. W. Bush from 1989 to 1991.
Born in Cuba to an American father and a Salvadoran mother, he is of Greek, Hispanic, and Lebanese descent, making him the first Arab American, Greek American, and Hispanic American to be governor of New Hampshire and White House chief of staff. He is the father of John E. Sununu, the former United States Senator from New Hampshire, and Christopher Sununu, the former governor of New Hampshire. Sununu was the chairman of the New Hampshire Republican Party from 2009 to 2011.