Diana Blackmon Henriques (born December 1948) is an American financial journalist and author working in New York City. Since 1989, she has been a reporter on the staff of The New York Times working on staff until December 2011 and under contract as a contributing writer thereafter.

Henriques was born in Bryan, Texas, and raised primarily in Roanoke, Virginia, where she was introduced to journalism through the Junior Achievement program at her public high school. Graduating in 1966, she was awarded a scholarship to The George Washington University's Elliott School of International Affairs in Washington, D.C., where she worked on the campus newspaper, The Hatchet. In September 1969, she graduated with distinction, Phi Beta Kappa, from what is now the university's Elliott School of International Affairs. In May 2011, Henriques was elected to the George Washington University Board of Trustees.

Soon after her marriage in 1969 to Laurence B. Henriques Jr., she was hired as the editor of The Lawrence Ledger, a small weekly paper covering Lawrence Township, N.J. After working at several local and regional daily newspapers, including The Philadelphia Inquirer, Henriques joined Barron's magazine as a staff writer in 1986.

In 1989, she was hired by The New York Times, where she earned the 1999 Gerald Loeb Award for Deadline and/or Beat Writing for as part of a team covering the near collapse of Long-Term Capital Management.

In 2003, she was elected to the board of governors of the Society of American Business Editors and Writers and served until 2016. In 2007, she was cited by the New York Financial Writers Association for "having made a significant long-term contribution to the advancement of financial journalism".

At The New York Times, Henriques has worked on several collaborative projects with reporters from other departments. In 2001, she and the national education writer examined serious quality control problems in the nation's scholastic testing industry. After the terrorist attacks of September 2001, she worked with a reporter on the metropolitan desk to cover federal compensation and charitable relief for the survivors of those killed in the attacks. She also chronicled the fate of Cantor Fitzgerald, the Wall Street trading house that lost three-quarters of its work force in the collapse of the World Trade Center. Her work was included in the "A Nation Challenged" section for which The New York Times won a Pulitzer Prize in 2002.

In 2005, Henriques was a Pulitzer finalist for a series of articles, beginning in July 2004, that exposed the financial exploitation of young soldiers by insurance and investment companies. The articles spurred state regulatory action, congressional hearings, legislative changes, cash refunds for thousands of service members and the adoption of more stringent Pentagon rules governing financial solicitations on and around military bases. For her work on those stories, Henriques was awarded the George Polk Award for Military Reporting, the Worth Bingham Prize and the Goldsmith Prize for Investigative Reporting.

Henriques had also worked on the business news team whose coverage of the post-Enron corporate scandals was cited as a Pulitzer finalist in 2003, and she was a member of the reporting team that was named a Pulitzer finalist for its coverage of the 2008 financial crisis.