Prix Iris for Best Supporting Actress

Québec Cinéma presents an annual award for Best Supporting Actress (Prix Iris de la meilleure interprétation féminin dans un rôle de soutien) to recognize the best in the Cinema of Quebec.

Until 2016, it was known as the Jutra Award for Best Supporting Actress in memory of influential Quebec film director Claude Jutra. Following the withdrawal of Jutra's name from the award, the 2016 award was presented under the name Québec Cinéma. The Prix Iris name was announced in October 2016.

Céline Bonnier received the most nominations in this category, seven, and received one award. Sandrine Bisson received four nominations, including three for her roles in Ricardo Trogi's autobiographical trilogy. She won for 1981 and 1991, becoming the only actress to win the award twice. For her performance in Inch'Allah, Sabrina Ouazani became the first non-Canadian to win the award.

A rare tie occurred in this category during the 7th Jutra Awards between Sylvie Moreau and Brigitte Lafleur for their respective roles in Love and Magnets (Les aimants) and The Five of Us (Elles étaient cinq).

Three actresses received nominations for Best Actress and Best Supporting Actress in the same year:
 * In 2005, Céline Bonnier was nominated for Best Actress for Machine Gun Molly (Monica la mitraille) and Best Supporting Actress for The Last Tunnel (Le dernier tunnel).
 * In 2007, Bonnier achieved the same feat again, winning Best Actress for Deliver Me (Délivrez-moi) while receiving a nomination for Best Supporting Actress for A Sunday in Kigali (Un dimanche à Kigali).
 * In 2017, Emmanuelle Lussier-Martinez was nominated for Best Actress for Those Who Make Revolution Halfway Only Dig Their Own Graves (Ceux qui font les révolutions à moitié n'ont fait que se creuser un tombeau) and Best Supporting Actress for Bad Seeds (Les mauvaises herbes).
 * In 2022, Hélène Florent became the first person to win both awards, Best Actress for Drunken Birds (Les oiseaux ivres) and Best Supporting Actress for Maria Chapdelaine.