Jack

Jack originated as a medieval English pet form of John, which derives from the Latin Iohannes and ultimately from the Hebrew Yochanan, meaning God is gracious. The transition from John to Jack occurred through the intermediate forms Jankin and Jackin, common in the thirteenth and fourteenth centuries. Jack became so widespread as a name for ordinary English men that it entered general vocabulary: terms such as jackrabbit, flapjack, and the phrase every man jack reflect its status as a byword for an everyman. It was largely treated as an informal variant of John until the twentieth century, when it gained full independent status.

Jack is deeply embedded in English cultural identity. It appears throughout English folklore and nursery rhymes: Jack and Jill, Jack and the Beanstalk, Jack Sprat, Little Jack Horner, and Jack be Nimble all attest to the name's role as the archetypal English boy. In the twentieth century, Jack acquired a dash of international glamour through figures such as Jack Kennedy and Jack Nicholson, while retaining its down-to-earth English character. In England and Wales, Jack sat at number one in the official baby name charts for over a decade from the mid-1990s, a record of popularity that cemented its status as the defining boys' name of its era. It remains a perennially strong choice.