Arianna Huffington net worth: Arianna Huffington is a Greek American author, syndicated columnist, and politician who has an estimated net worth of $50 million dollars. Arianna Huffington was born in Athens, Greece in 1950, moved to England when she was 16, and to the U.S. in 1980. She is best known as the co-founder of the website The Huffington Post. In 1973, Arianna (under her maiden name of Arianna Stassinopoulou) wrote a book titled The Female Woman, attacking the Women's Liberation movement in general. She is the ex-wife of former Republican congressman Michael Huffington. Arianna Huffington has written 13 books and in 2009 she was named number 12 on the first ever Forbes list of the Most Influential Women in Media. In 2003, she ran in the California recall election as an independent candidate for Governor. Arianna Huffington is co-host of the nationally syndicated weekly public radio program "Both Sides Now" with former Bush/Cheney aide Mary Matalin. The pair discusses the nation's most relevant political issues from both sides. In 2011 AOL bought the Huffington Post for $315 million dollars, making Arianna Huffington president and editor in chief of The Huffington Post Media -Group. At the time of the sale, Arianna reportedly owned 30% of the equity in her website, giving her a pre-tax pay day of roughly $100 million. Arianna Huffington became a naturalized American citizen in 1990.