Pascal or PASCAL may refer to:

Blaise Pascal (French pronunciation: [blɛz paskal]; 19 June 1623 – 19 August 1662), was a French mathematician, physicist, inventor, writer and Catholic philosopher. He was a child prodigy who was educated by his father, a tax collector in Rouen. Pascal's earliest work was in the natural and applied sciences where he made important contributions to the study of fluids, and clarified the concepts of pressure and vacuum by generalizing the work of Evangelista Torricelli. Pascal also wrote in defense of the scientific method.

In 1642, while still a teenager, he started some pioneering work on calculating machines, and after three years of effort and 50 prototypes he invented the mechanical calculator. He built twenty of these machines (called the Pascaline) in the following ten years. Pascal was an important mathematician, helping create two major new areas of research: he wrote a significant treatise on the subject of projective geometry at the age of sixteen, and later corresponded with Pierre de Fermat on probability theory, strongly influencing the development of modern economics and social science. Following Galileo and Torricelli, in 1646 he refuted Aristotle's followers who insisted that nature abhors a vacuum. Pascal's results caused many disputes before being accepted.

Pascal Michel Obispo (born 8 January 1965 in Bergerac, Dordogne, France) is a French singer/songwriter.

Pascal Obispo started singing in 1980. He got his first record deal in 1990, Le long du fleuve. With his second album, Plus que tout au monde, selling over 2 million albums, his songs became a popular success. Some of his most famous songs are "Plus que tout au monde", "Laurelenn", "Tombé pour elle", "L'important c'est d'aimer", "Personne" and "Fan". With his 2007 release of Les Fleurs du Bien (a play on Baudelaire's Les Fleurs du mal) he makes allusions to Rosa Parks, Pablo Picasso and others. He is also well known for his various escapades, his unconservative behavior, his haircut, etc. His name is an anagram of painter Pablo Picasso's name. Most of his albums have now sold more than 1 million copies.

Obispo used his popularity to help with humanitarian work and particularly with work to stop the AIDS epidemic. He has worked with many other well-known artists such as Jean-Jacques Goldman, Florent Pagny, Johnny Hallyday, Patricia Kaas, Amel Bent, and Natasha St-Pier.

Jean-Thenistor Pascal (born October 28, 1982 in Port-au-Prince, Haiti) is a Haitian-Canadian professional boxer. He is a former WBC and The Ring Light Heavyweight Champion.

When Pascal was 4, his mother (a nurse) and older brother (Nicholson Poulard) left Haiti for a better life and education. They settled in Laval, Quebec, just outside of Montreal. His father, a well-respected politician, remained in Haiti. Pascal played hockey and soccer, but after watching his older brother become the Quebec Boxing Champion in 1996, Pascal, at 13 years of age, started to visit boxing gym "Club Champions St-Michel" once or twice every week. His first trainer was Sylvain Gagnon, who considered Pascal to be very talented. According to an interview from May 2005, Pascal's idol was Roy Jones Jr..

He represented Canada as a middleweight at the 2004 Olympics in Athens.

Pascal made his professional debut on February 3, 2005, defeating Justin Hahn by second round technical knockout. After nine professional fights, Pascal fought for the Canada National Super Middleweight title and the Quebec boxing Council (CQB) title in a national bout against Martin Desjardins, winning the fight by KO 7. After two more fights Pascal bagged the TAB (Trans America Boxing) Super Middleweight title against Darnell Boone in his first ten round contest. Soon after Pascal fought Lucas Green Arias on September 30, 2006, at the Montreal Casino. The fight was for the vacant WBC Latino Super Middleweight title. Pascal sent him to the canvas with a flurry of punches in the sixth round. Arias got up for the final second of the round, but moments later slid off the stool in his corner, vigorously rubbing his head. He was unable to get up for the seventh round, making Pascal the winner. He was given oxygen in the ring and then was taken to the hospital on a stretcher. It was revealed that he suffered a subdural hematoma.

Bernard Humphrey Hopkins Jr, known as The Executioner (born January 15, 1965, in Philadelphia, Pennsylvania) is an American boxer and former Ring Magazine and WBC light heavyweight champion. He became the oldest boxer to ever win a world title, when at age 46, he defeated Jean Pascal on May 21, 2011 by a unanimous decision, surpassing the record previously held by George Foreman.

Hopkins is also the former undisputed world middleweight champion, and the first fighter to retain all 4 world titles of each major boxing sanctioning body, plus The Ring belt, in the same fight. Having defended a world middleweight title a record 20 times, he is considered one of the greatest middleweight champions of all time. The Ring ranked him #3 on their list of the "10 best middleweight title holders of the last 50 years."

In addition to being an active boxer, Hopkins is also a minority partner with Golden Boy Promotions.

Born to Bernard Hopkins, Sr. and his wife Sue, Bernard grew up in the Raymond Rosen projects with his family. Hopkins turned to crime early in his life. By the age of thirteen he was mugging people and had been stabbed three times. At seventeen, Hopkins was sentenced to 18 years in Graterford Prison for nine felonies. While in prison he witnessed rapes and the murder of another inmate in an argument over a pack of cigarettes, but also discovered his passion for boxing. After serving almost five years, Hopkins was released from prison in 1988. He then decided to use boxing as an escape from his previous life, and converted to Islam. While leaving the prison for the final time, the warden told Hopkins he'd "see [Hopkins] again when you wind up back here," to which Hopkins replied "I ain't ever coming back here."