Finn the Half-Great (2009) is a fiction novel written by Canadian author and columnist Theo Caldwell.

[2] It also includes elements from Norse, Japanese and English mythology.

[3] The novel, aimed at a young audience aged 10 and over, was included in the Toronto Star's Holiday Reads of 2009.

[4] Quill & Quire, which published a review of the book, called it "a quest fantasy with moments of humour and high emotion, epic battles and daring deeds",[5] however it was also described as "half-great" by the School Library Journal.

[3] Theo Caldwell has stated his intention to publish a second novel, Finn the half-Great and the Death of Gogmagog, as part of a five-book series.