Jonathan J. Bush (Jonathan James Bush) (1931- ) is an uncle to President George Walker Bush.
Jonathan Bush's "Pioneer Profile" in "George W. Bush's $100,000 Club" cites him as the "head" of the Riggs Investment Management Co.; "Bush's uncle Jonathan ... founded its subsidiary, J. Bush & Co., of which he is chair. He also is an ex-chair of the New York Republican State Finance Committee. Bush credits the investors sent his way by this banker uncle as a key to his 'success' in the Texas oil industry in the early '80s."  See Bush's Rangers.
- According to the July 30, 1999, Washington Post, "A Wall Street financier, Jonathan Bush pulled together two dozen investors to raise $3 million to help launch Arbusto. Among the investors was Dorothy Bush, George W.'s grandmother. At the same time, Jonathan Bush was lining up investors for Arbusto, he also was raising money for George H.W. Bush's presidential explorations. Many of the funders were the same." Bush is a Trustee of the George Bush Presidential Library Foundation. 
- On May 31, 2000, Riggs Bank N.A. "announced that the Board of Directors of RIMCO, a wholly owned investment management subsidiary, has elected Jonathan J. Bush President & Chief Executive Officer and a Director, replacing Philip Tasho who resigned. In addition, Henry A. Dudley, Jr. was elected Chairman.
- "Mr. Bush will continue as Chairman and Chief Executive Officer of J. Bush & Co., an investment management company he founded in 1970, which Riggs acquired in 1997. Mr. Dudley, a 24-year veteran of Riggs, will continue to be responsible for all of Riggs Bank's investment management, trust and private banking business.
- "Located in the nation's capital, Riggs Bank has 53 branches in the Washington, DC metropolitan area, as well as banking offices in Miami, London and Berlin."
- In July 26, 1991, the Boston Globe's Frank Phillips reported "State Fines Bush's Brother in Stock Case."
- "Massachusetts securities regulators have fined the stockbrokerage firm owned by President Bush's brother Jonathan $30,000 and barred it from trading with the general public for one year because the company and Bush violated state registration laws.
- "As part of a consent order worked out with Secretary of State Michael J. Connolly's securities division, the New York firm of J. Bush & Co., whose only principal is Jonathan J. Bush, also agreed that it would offer to reimburse its clients in Massachusetts for stocks it had sold them since January 1988. . . .
- "Connolly's securities chief, Neal Sullivan, said yesterday that Bush's problems began in February when Bush informed his agency that he had never registered as a broker-dealer in Massachusetts. But Sullivan said Bush compounded his legal problem by taking a cavalier attitude toward the violation of the Uniform Securities Act when he continued to carry out transactions even as state regulators were negotiating a consent decree with him.
- "'That created great concern for us. We were dismayed,' Sullivan said. 'Anyone who has been notified that he is violating state law and continues to do so certainly exemplifies a cavalier attitude toward the registration laws.'"
Margie Burns reported in the February 4, 2003, Prince George's Journal (Maryland), that President George W. Bush "nominated William H. Donaldson to head the Securities and Exchange Commission. Donaldson, a longtime Bush family friend, was a Yale classmate of Jonathan Bush." 
Jonathan Bush is also the father of Access Hollywood's anchor Billy Bush and Jonathan Bush, Jr.,the President, CEO and Co-founder of athenahealth (www.athenahealth.com).