Sarah Mlynowski

Sarah Mlynowski (born January 4, 1977) is a Canadian and American writer of middle-grade fiction, young adult novels, and adult fiction. She lives in Los Angeles.

Biography Sarah Mlynowski is the daughter of the romance writer Elissa Ambrose. Her parents are divorced, and she has one sister, Aviva Mlynowski, and an older stepsister. She graduated with an Honors degree in English literature from McGill University. Later, she moved to Toronto to work for Harlequin Enterprises Ltd. She used her romance publishing experiences in her first novel Milkrun, which has since been published in 16 countries, selling over 600,000 copies around the globe. After her second novel Fishbowl was published, she moved to New York City to write full-time. She is best known for her New York Times best-selling series Whatever After. Along with authors Michael Buckley, Julia DeVillers, and Adele Griffin, Mlynowski is a co-founder of OMG BookFest, a book festival geared to middle-grade readers.

Mlynowski married her husband Todd in 2004, and together they have two daughters,

In March 2026, Mlynowski and her husband legally became American citizens after twenty-five years of living in the United States.