List of Famous people with last name Knowles

William Standish Knowles was an American chemist. He was born in Taunton, Massachusetts. Knowles was one of the recipients of the 2001 Nobel Prize in Chemistry. He split half the prize with Ryōji Noyori for their work in asymmetric synthesis, specifically for his work in hydrogenation reactions. The other half was awarded to K. Barry Sharpless for his work in oxidation reactions.

Anthony Carroll Knowles is an American politician and businessman who served as the seventh governor of Alaska from December 1994 to December 2002. Barred from seeking a third consecutive term as governor in 2002, he ran unsuccessfully for the U.S. Senate in 2004 and again for governor in 2006. In September 2008, Knowles became president of the National Energy Policy Institute, a non-profit energy policy organization funded by billionaire George Kaiser's family foundation, and located at the University of Tulsa.

Paul John Knowles, also known as The Casanova Killer, was an American serial killer tied to the deaths of 20 people in 1974, though he claimed to have taken 35 lives.

Harry Jay Knowles is a film critic and writer known for his website called Ain't It Cool News. Knowles was a member of the Austin Film Critics Association until he was removed in September 2017 "by a substantial majority vote" of the organization following allegations of sexual assault.