James David Margolis (born April 30, 1955) is an American political consultant and communications executive based in Washington, DC.

[15] Margolis received his BA from Oberlin College in 1978 with a double major in Government and Communications Studies.

[25][26] Margolis served as a strategist and media consultant for Senator John Kerry's 2004 presidential primary campaign.

[8] During the 2004 Democratic primaries, "Margolis' commercials featuring Senator John Kerry's crewmates from Vietnam recalling his heroism were credited with helping him win the nomination," according to The New York Times.

[27] He left the Kerry race after the nomination was effectively won, after a dispute with Robert Shrum, another media consultant.