Antoinette Donnelly (1887–1964) was an American newspaper advice columnist and author of books about weight loss, beauty tips and advice.^[1] As Donnelly, she wrote the column Beauty Answers for the New York Daily News^[2] and other papers. She also wrote an advice column under the byline Doris Blake for 45 newspapers served by the Daily News and Chicago Tribune syndicate.^[2] In 1920, Donnelly wrote one of the first books about weight loss,^{[citation needed]} the bestselling How to Reduce: New Waistlines for Old^[3] (D. Appleton & Company).

Just as columnists like Ann Landers and Abigail Van Buren would do later, "Doris Blake" had single issue booklets available to female readers who provided a self-addressed stamped envelope, ranging from Getting and Keeping Boys Interested to What About Petting? to How to Be Happy Though Married. She also served as a co-editor of the short-lived The Woman's Almanac.^[4] Donnelly retired from the Daily News at the end of 1962 and died in Greenwich, Connecticut, on November 15, 1964.^[2]