Gynecologic Cancer Education and Awareness Act of 2003 or Johanna's Law - Directs The Secretary of Health and Human Services: (1) through the National Institutes of Health (NIH), and in collaboration with the Director of the Centers for Disease Control and Prevention, to carry out a national campaign to increase the awareness and knowledge of women with respect to gynecologic cancers; and (2) through NIH and the Director, to carry out a demonstration program with nonprofit private entities to test different outreach and education strategies to increase such awareness among women and health care providers.