Oliver comes from the Old French name "Olivier," which was derived from the Latin name "Oliverius." The name "Oliverius" is thought to be derived from the Latin word "oliva," which means "olive tree."

In the Middle Ages, the name Oliver became popular in England due to the popularity of the French epic poem "La Chanson de Roland," which tells the story of a heroic knight named Oliver. Since then, the name Oliver has remained popular in many English-speaking countries. It has a simple and classic sound, which may contribute to its enduring popularity.

Oliver Cromwell - an English military and political leader who served as Lord Protector of England, Scotland, and Ireland in the mid-17th century.

Oliver Stone - an American filmmaker known for directing films such as "Platoon," "JFK," and "Natural Born Killers."

Oliver Hardy - an American actor and comedian who was one half of the comedy duo "Laurel and Hardy."

Oliver Kahn - a retired German professional footballer who played as a goalkeeper for Bayern Munich and the German national team.

Oliver Reed - an English actor known for his roles in films such as "Gladiator," "Oliver!," and "The Three Musketeers."

Oliver Twist - the protagonist of the novel "Oliver Twist" by Charles Dickens.

Oliver Queen - the secret identity of the DC Comics superhero Green Arrow.

Oliver Wood - a character from the "Harry Potter" book series by J.K. Rowling, who played Quidditch for the Gryffindor team.

Oliver Barrett IV - a character from the novel "Love Story" by Erich Segal, who falls in love with a working-class girl named Jennifer.

Oliver Trask - a character from the TV show "The O.C." who is the new bad boy in town and clashes with the main character, Ryan.