The Prix Iris for Best Editing (French: Prix Iris du meilleur montage) is an annual film award presented by Québec Cinéma as part of the Prix Iris awards program, to honour the year's best film editing in the Cinema of Quebec.
Until 2016, it was known as the Jutra Award for Best Supporting Actor in memory of influential Quebec film director Claude Jutra.
Mathieu Bouchard-Malo is the only editor to receive two nominations in the same year in 2019.
To date, thirteen editors received nominations for films they directed: Michel Jetté, Simon Sauvé, Xavier Dolan (thrice), Demian Fuica, Rafaël Ouellet, Nathalie Saint-Pierre, François Delisle, Chloé Leriche, Mathieu Denis, Robin Aubert, Sophie Deraspe, Monia Chokri and Matthew Rankin.
Of those, Xavier Dolan and Sophie Deraspe won the award.