Norman Gene Macdonald (October 17, 1959 – September 14, 2021) was a Canadian stand-up comedian, actor, and writer whose style was characterized by deadpan delivery, eccentric understatement, and the use of folksy, old-fashioned turns of phrase. He appeared in many films and was a regular guest on late-night talk shows, where he became known for his chaotic, yet understated style of comedy. Many critics and fellow comedians considered him to be the ultimate talk show guest, while prominent late-night figure David Letterman regarded him as "the best" of stand-up comedians.

Earlier in his career, Macdonald's first work on television included writing for such comedies as Roseanne and The Dennis Miller Show. In 1993, Macdonald was hired as a writer and cast member on Saturday Night Live (SNL), spending a total of five seasons on the series, which included anchoring the show's Weekend Update segment for three and a half seasons. He was removed as host of SNL's Weekend Update in 1998, allegedly for relentlessly mocking O. J. Simpson during his murder trial, offending producer Don Ohlmeyer, who was a close friend of Simpson. After being fired from SNL, he wrote and starred in the 1998 film Dirty Work and headlined his own sitcom, The Norm Show, from 1999 to 2001. Macdonald was also a voice actor, and provided voice acting roles for Family Guy, The Fairly OddParents, Mike Tyson Mysteries, The Orville, and the Dr. Dolittle films.

Between 2013 and 2018, Macdonald hosted the talk shows Norm Macdonald Live (a video podcast) and Norm Macdonald Has a Show (a Netflix series), on which he interviewed comedians and other celebrities. In 2016, he authored Based on a True Story, a novel that presented a heavily fictionalized account of his life. Macdonald died of leukemia in September 2021, a condition he had not publicly disclosed.