Olena Anastasiyivna Voronyna (), popularly known as Lesya Voronyna (, born 21 March 1955 in Kyiv), is a Ukrainian children's book writer, translator, journalist, and member of the Association of Ukrainian Writers.
In 2008, Voronyna won the "BBC Book of the Year" award for her book ' ("Nyamlyk and the Chatty Flower"). In 2009, her book ' ("Dreams of Hans Christian") won First Prize in "The Best Book of Ukraine 2009". In 2012, her book ' ("The Secret Society of Cowards and Liars") won the "BBC Children's Book of the Year" award.
On 25 April 2025, Voronyna faced a wave of criticism on Ukrainian social media after referring to a 12-year-old boy with autism as "a creature that attracts attention to itself" during a children's books presentation in Kyiv. She later apologized for her words.