Nellie Letitia McClung (20 October 18731 September 1951) was a Canadian author, politician, and social activist, who is regarded as one of Canada's most prominent suffragists.

Matthew Ford "Mac" McClung (born January 6, 1999) is an American professional basketball player for the Orlando Magic of the National Basketball Association, on a two-way contract with the Osceola Magic of the NBA G League.

Katzenbach v. McClung, 379 U.S. 294, was a landmark decision of the U.S. Supreme Court which unanimously held that Congress acted within its power under the Commerce Clause of the United States Constitution in forbidding racial discrimination in restaurants as this was a burden to interstate commerce.

Megan Malia Leilani McClung (April 14, 1972 – December 6, 2006) was the first female United States Marine Corps officer killed in combat during the Iraq War, and the first female graduate of the U.S. Naval Academy to be killed in the line of duty.