This name was common in Sweden and Denmark in the 1970s [1]. It rose in popularity in the English-speaking world in the 1990s, entering the top ten for girls in the United States in 2009. It was also popular in many other countries at that time. Famous bearers include American actress Mia Farrow (1945-) and American soccer player Mia Hamm (1972-), birth names Maria and Mariel respectively.
In the United States this form was more popular than the full form Elizabeth from 1958 to 1978, and was in fact the top ranked American name between 1962 and 1969.
American writers Jack London (1876-1916) and Jack Kerouac (1922-1969) were two famous bearers of this name. It is also borne by the actor Jack Nicholson (1937-) and the golfer Jack Nicklaus (1940-). Apart from Nicklaus, none of these famous bearers were given the name Jack at birth.
In the United Kingdom this form has been bestowed more frequently than John since the 1990s, being the most popular name for boys from 1996 to 2008.