- He currently lives in Paradise Valley, Arizona.
- His screen test for Ben-Hur as Messala is included in the Four-Disc Collector's Edition as a bonus feature.
- He is the son of an RCMP (Royal Canadian Mounted Police) officer.
- He was named "the Laurence Olivier of spoofs," by film critic Roger Ebert.
- He has a star on the Hollywood Walk of Fame.
- His father was Danish Canadian.
- He likes the winter season better than the summer season.
- He was asked for Scary Movie 4 because his character was very popular.
- As of 2002, he does most of his acting in Canada.
- He has played Santa Claus in two different movies.
- He carries a remote controlled fart machine around with him.
- He was a radio engineer.
- He published a fake autobiography in 1993.
- He received a contract with Paramount in 1954 and moved to Hollywood.
- He moved to New York in 1949.
- After earning his degree he moved on to New York's Neighborhood Playhouse.
- He was raised in Tulita, Northwest Territories.
- His character on Due South compared himself to Leslie Nielson.
- His father was a Mountie.
- Leslie studied at the Academy of Radio Arts in Toronto.
- His acting career started at a much earlier age when he was forced to lie to his father in order to avoid severe punishment.
- Leslie has starred in over fifty movies.
- He was born at 5:00am-MST.
- His grandfather on his father's side was Danish.
- He is a naturalized U.S. citizen.
- He went to High School in Edmonton, Alberta, at Victoria Composite High School.
- Leslie tried out for the role of Messala in Ben Hur (1959) but the part went to Stephen Boyd.
- Leslie was considered for the role of Willy Wonka in Charlie And The Chocolate Factory (2005) but it was given to Johnny Depp instead.
- Leslie was inducted into Canada's Walk of Fame in 2001.
- He keeps a whoopee cushion in his pocket to squeeze when he needs to break the tension on movie sets and when meeting people.
- He is an Officer of the Order of Canada.
- At the age of 17, he enlisted in the Royal Canadian AirForce and trained as an aerial gunner.
- Leslie has two daughters: Maura Nielsen Kaplan and Thea Nielsen Disney.
- In the Fall of 2003, the Grant MacEwan College in Edmonton, Alberta, Canada opened the Leslie Nielsen School of Communications, with the actor on hand for the ceremony.
- While in Winnipeg, Canada to promote their movie Men With Brooms, he and fellow co-star Paul Gross (Slings and Arrows) received Honorary Citizenships from Winnipeg Mayor Glen Murray at the Granite Curling Club.
- His brother was a high ranking Canadian politician. Eric Nielsen was the Government Leader of the Yukon Territory before becoming a Member of Parliment and the Deputy Prime Minister of Canada.
- Leslie Nielsen: The reason they call it 'golf' is that all the other four-letter words were used up.
- Leslie Nielsen: Yes, it's true, I've been called the Laurence Olivier of spoofs. I guess that would make Laurence Olivier the Leslie Nielsen of Shakespeare.
- Leslie Nielsen: The best part is always the heavy. And the meaner and crueler and the worse you are, the more vicious you are as the heavy, the better the hero looks when he whips you. So, the heavy is liable to be a very dramatic, fine acting part. I told my agent at that time, "I want to play heavies who are really vicious and cruel and terrible. I want them to know that they're terrible and I want them to enjoy it."
- Leslie: I wore that same shirt yesterday playing golf. There goes the Nike account.
- Leslie: Doing nothing is very hard to do, you never know when you're finished.
