Bókasafn Ömmu Huldar (literally 'Granny Huld's Library', but in the author's preferred English translation Grandmother's Library) is the third novel by the Icelandic author Þórarinn Leifsson. It won the Reykjavik Children's Book Prize in 2010 and was nominated for the Nordic Children's Book Prize in 2011 – an award given out every two years by librarians in the Nordic countries. The book was, in the assessment of Natalie M. Van Deusen, 'inspired by the recent Icelandic financial crisis'.