David George Nason (born October 6, 1970) is an American lawyer, government official and corporate executive from Washington, DC.

In 2019, he joined the Teachers Insurance and Annuity Association of America (TIAA) as Executive Vice President and Chief Risk & Compliance Officer.

[9][10] Nason also played a leading role in the Treasury's efforts to enhance the regulation and supervision of Fannie Mae, Freddie Mac and the Federal Home Loan banks.

"[15] Andrew Ross Sorkin's bestselling book Too Big to Fail (Viking 2009) says Nason was Treasury's "resident policy-making brain" who had been warning since 2007 that a Bear Stearns-like run on one or more banks was likely.

In May 2009, he testified before the Senate Committee on Homeland Security & Governmental Affairs, urging Congress to modernize U.S. regulatory structures so they keep up with the financial innovations driven by rapid capital mobility, deep liquidity and technology.

[19] In December 2009, in an opinion piece in The New York Times, Nason called for a re-examination of the Troubled Asset Relief Program (TARP) repayment standards.

[20] In August 2010, Nason was named senior vice president and chief regulatory and compliance officer for GE Capital.

TIAA, a leading financial services provider, announced in September 2019 that David G. Nason joined the company as Executive Vice President and Chief Risk and Compliance Officer.

For Nason's service during the financial crisis and his contributions to regulatory reform, he was given the Alexander Hamilton Award, the Treasury's highest honor.