Madeleine Grunwald (born October 5, 1957) is an American professional political consultant and media advisor for the Democratic Party.

Grunwald is one of the few women at the top of the field, having helped elect numerous senators and governors, and is the only woman in history to run the advertising for a successful presidential campaign (Bill Clinton’s).

[4][7] In 2004, Grunwald worked for the senatorial campaign of Ken Salazar in Colorado and gubernatorial effort of John Lynch in New Hampshire, both of whom won.

[8] The Washington Post identified her as one of the key members of "Hillaryland", Hillary Clinton's closest advisors beginning with her First Lady days.

[9] Grunwald's position as a White House advisor reportedly faded after 1995, when she and others were supplanted by Dick Morris according to the New York Times.

In 2010, Grunwald worked for David Cicilline's campaign for U.S. representative of Rhode Island's 1st congressional district, who at the time was the first openly gay mayor of a U.S. state capital.

The New York Times has described Grunwald as "smart, tough, gruff, intensely loyal to her candidates, with an air of superiority and great certainty."

[4] Grunwald is believed to have been the inspiration for the character "Daisy Green" in the roman à clef of the 1992 presidential campaign, Primary Colors, published by "Anonymous" in 1996.

[13] During the COVID-19 pandemic in the United States the CDC Director Rochelle Walensky turned to Mandy Grunwald for advice after communication missteps.