Mr Trudeau first learned of Hollywood star Sutherland’s death while hosting a news conference in Westville, Canada, related to the national school food programme.
“I didn’t know, thank you for telling me,” he told the journalist.
“I had the opportunity when I was much younger to meet Donald Sutherland and even as a young man who hadn’t had a full exposure to the depth of brilliance of Donald Sutherland, I was deeply, deeply starstruck.
“He was a man with a strong presence, a brilliance in his craft, and truly a great Canadian artist and he will be deeply missed.
“My thoughts go out to Kiefer and the entire Sutherland family, as well as all Canadians who are no doubt saddened to learn as I am right now.”
During his esteemed career, Sutherland garnered hundreds of film and TV credits alongside star-studded casts.
Among those paying tribute was British actress Dame Helen Mirren, who appeared alongside Sutherland in 2017’s The Leisure Seeker, following their 1990 drama Bethune: The Making Of A Hero.
“Donald Sutherland was one of the smartest actors I ever worked with,” Dame Helen said in a statement given to the PA news agency.
“He had a wonderful enquiring brain, and a great knowledge on a wide variety of subjects.
“He combined this great intelligence with a deep sensitivity, and with a seriousness about his profession as an actor.
“This all made him into the legend of film that he became. He was my colleague and became my friend. I will miss his presence in this world.”
Meanwhile two-time Oscar winner Michael Douglas, who starred in 1994 film Disclosure alongside Sutherland and Demi Moore, shared a picture of the pair together on Instagram.
“What a lovely, talented, and curious man. RIP Donald Sutherland,” he wrote.
