Andrew Michael Sullivan (born 10 August 1963) is a British-American author, editor, and blogger. Sullivan is a political commentator, a former editor of The New Republic, and the author or editor of six books. He started a political blog, The Daily Dish, in 2000, and eventually moved his blog to platforms, including Time, The Atlantic, The Daily Beast, and finally an independent subscription-based format. He announced his retirement from blogging in 2015. From 2016 to 2020, Sullivan was a writer-at-large at New York. His newsletter The Weekly Dish was launched in July 2020.

Sullivan has stated that his conservatism is rooted in his Catholic background and in the ideas of the British political philosopher Michael Oakeshott. In 2003, he wrote he was no longer able to support the American conservative movement, as he was disaffected with the Republican Party's continued rightward shift towards social conservatism on social issues during the George W. Bush era.

Born and raised in Britain, he has lived in the United States since 1984 and currently resides in Washington, D.C., and Provincetown, Massachusetts. He is openly gay and a practicing Catholic.