Responsible Fatherhood Act of 2003

Responsible Fatherhood Act of 2003 - Amends part D (Child Support and Establishment of Paternity) of title IV of the Social Security Act (SSA) to direct the Secretary to award grants to eligible States and entities to conduct demonstration programs to promote responsible fatherhood.

Requires the Secretary of Health and Human Services to contract with a nonprofit fatherhood promotion organization to: (1) develop and distribute a media campaign that addresses the issue of responsible fatherhood to States, local governments, public agencies, and private entities; and (2) develop a national clearinghouse to assist States and community efforts to promote and support marriage and responsible fatherhood by disseminating information regarding media campaigns and programs instituted by States using grant funds under this Act.