More info about the name "Jackie"
Jackie is a diminutive of Jack, or Jacqueline. Jacqueline originates in Hebrew language and means "one who supplants". It is a feminine form of Jacques, ultimately derived from Jacob. Jacqueline has always been one of the most popular names not only in English-speaking countries. It has been used since the 17th century and in the United States it was popularized by Jacqueline Kennedy Onassis, the wife of President John F. Kennedy.