James Danforth "Dan" Quayle, (born February 4, 1947) served as the 44th Vice President of the United States, serving with President George H. W. Bush (1989-1993). He served as a U.S. Representative and U.S. Senator from the state of Indiana.

Quayle was born in Indianapolis but spent most of his childhood living in Arizona. He married Marilyn Tucker in 1972 and obtained his J.D. from Indiana University School of Law - Indianapolis in 1974. He practiced law in Huntington, Indiana with his wife before being elected to the United States Congress in 1976, aged 29. In 1980, Quayle entered the Senate.

In 1988, Vice President George H. W. Bush was nominated for the presidency by the Republican Party and asked his party to nominate Quayle as his running mate. Although this choice was met with some dismay, the Bush/Quayle ticket won the 1988 election over Democrat Michael Dukakis. As vice president, Quayle made official visits to 47 countries and was appointed chairman of the National Space Council. He secured re-nomination for vice-president in 1992 but the Bush/Quayle ticket was defeated by Democrat Bill Clinton and his vice-presidential nominee, Al Gore.

In 1996, he published his memoirs entitled Standing Firm but declined to run for public office in this time period due to being afflicted by phlebitis. He sought the Republican presidential nomination in 2000, but withdrew and supported George W. Bush. Quayle and his wife currently reside in Paradise Valley, Arizona.

One of his sons, Ben Quayle, was elected to the House of Representatives in 2010.

NOTE: Bio updated on November 8, 2011