He was also the father to George W. Bush, the 43rd president of the United States.
Bush suffered from a form of Parkinson's disease and had been hospitalized several times in recent years.
Bush was admitted to Houston Methodist Hospital in April after "contracting an infection that spread to his blood", according to a statement from Bush family spokesman Jim McGrath.
In a statement from his office, Bush was described as a naval aviator, oil pioneer and the nation's 41st president.
"America has lost a patriot and humble servant in George Herbert Walker Bush".
Bush married Barbara Pierce in January 1945, shortly before the war ended, and the couple went on to have six children, including one, Robin, who died as a child.
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He was also the director of Central Intelligence Agency under the extremely popular Ronald Reagan and was the chairman of the Republican National Committee. One of the youngest pilots in the Navy, he flew 58 missions off the carrier USS San Jacinto.
He Graduated in 1948 with a degree in economics (Yale University).
His presidency coincided with a period of world upheaval that saw the dissolution of the Soviet Union, the fall of the Berlin Wall and the start of America's post-Cold War conflicts.
"Not merely for the years he spent as our forty-first President, but for the more than 70 years he spent in devoted service to the country he loved - from a decorated Naval aviator who almost gave his life in World War II, to commander-in-chief of our Armed Forces, with plenty of posts along the way".
In late 1989, Bush sent U.S. troops to Panama to oust strongman Manuel Noriega. Bush Sr. was the first vice president to be elected to the presidency since 1836, and also the second person in USA history whose son was able to become president after his father.