What is jack meaning?

The name Jack is a popular name of English origin, meaning "God is gracious." It derives from the name John, which was commonly used in the Middle Ages. Jack is sometimes used as a short form for the name Jackson, which means "son of Jack." The name Jack has been a popular choice for boys for many years and has been featured in many well-known literary works, such as Jack and the Beanstalk and Jack and Jill. In recent years, the name Jack has also been used for girls as a less common variation of the name Jacqueline.