Margo Howard (née Lederer; born March 15, 1940) is an American writer and former advice columnist. She is the only child of businessman/innovator Julius Lederer and Eppie Lederer (better known as Ann Landers after her long-time advice column Ask Ann Landers), the niece of Pauline Phillips, and the cousin of Jeanne Phillips (the latter two both better known as Abigail Van Buren and authors of the advice column Dear Abby).
Howard was born in Chicago, Illinois, to Eppie (née Esther Pauline Friedman) and Jules Lederer, a businessman and eventually the founder of Budget-Rent-A-Car International. She attended Brandeis University but dropped out to marry, after which she worked at the Chicago Tribune and Chicago Daily News, and wrote for The New Republic, People, The Nation, and Boston Magazine. She wrote a syndicated social commentary column, Margo, in the 1970s.
For eight years, Howard wrote the Dear Prudence column featured in Slate magazine. Dear Prudence also was featured on National Public Radio and syndicated in more than 200 newspapers. In February 2006, she left the Dear Prudence column, and began writing a Dear Margo column for Women on the Web (wowowow.com) and for Creators Syndicate. On May 11, 2013, Howard ended the Dear Margo column, announcing that she was retiring from writing on a deadline and saying, "I plan to write long-form pieces as the spirit moves me".