Grimmish is a 2021 experimental historical novel by Australian writer Michael Winkler. It was first published as a paperback original in January 2021 in Australia by Westbourne Books. The book is based on the tour of Australia in 1908–09 by boxer Joe Grim. It includes Grim's work as a sparring partner for both Jack Johnson and Tommy Burns prior to their Fight of the Century on Boxing Day 1908.