Johanna's Law Reauthorization Act This bill reauthorizes through FY2026 and otherwise revises the Centers for Disease Control and Prevention (CDC) national awareness campaign regarding gynecologic cancers. The CDC must target specified populations of women at higher risk for gynecologic cancers in the campaign. Additionally, the CDC may establish a grant program to evaluate different strategies to increase knowledge and awareness of gynecologic cancers among women and health care providers. In awarding these grants, the CDC must give preference to (1) grantees with expertise in gynecologic cancer education or treatment or expertise in working with groups of women at increased risk of such cancers; and (2) projects that will establish links between health care providers, hospitals, insurance companies, and state health departments.