Chimamanda Ngozi Adichie (born 15 September 1977) is a Nigerian writer whose works include novels, short stories, and nonfiction. She was described in The Times Literary Supplement as "the most prominent" of a "procession of critically acclaimed young anglophone authors [which] is succeeding in attracting a new generation of readers to African literature", particularly in her second home, the United States.

Adichie, a feminist, has written the novels Purple Hibiscus (2003), Half of a Yellow Sun (2006), and Americanah (2013), the short story collection The Thing Around Your Neck (2009), and the book-length essay We Should All Be Feminists (2014). Her most recent books are Dear Ijeawele, or A Feminist Manifesto in Fifteen Suggestions (2017), Zikora (2020) and Notes on Grief (2021). In 2008, she was awarded a MacArthur Genius Grant.

Her work has been translated into thirty languages and has appeared in various publications, including The New Yorker, The New York Times, Granta, The O. Henry Prize Stories, Financial Times and Zoetrope: All-Story.

She has delivered two landmark TED talks: her 2009 TED Talk The Danger of A Single Story and her 2012 TEDx Euston talk We Should All Be Feminists, which started a worldwide conversation about feminism and was published as a book in 2014.

She was named one of TIME Magazine’s 100 Most Influential People in the World in 2015. In 2017, Fortune Magazine named her one of the World’s 50 Greatest Leaders. She is a member of both the American Academy of Arts and Letters and the American Academy of Arts and Sciences.

Ms. Adichie divides her time between the United States and Nigeria, where she leads an annual creative writing workshop.